Category Archives: cooking appliances energy savings.

How To Realistically Save Money On Food

The problem.

Food has always been a large part of most people’s budgets. Inflation is a pain if you have financial resources, but it is devastating if you have been living paycheck to paycheck. As money becomes tight, people rely on other sources of cash, including credit cards, which adds more to their financial woes. 

You can delay purchasing a new TV or pause on updating your wardrobe, but you can’t stop eating. I grew up in a family of seven. My dad worked, but my mom did not work outside the home. We always had food on the table, and because my mom was a great cook, it was always delicious. However, she employed many budget-stretching techniques, some of which seem lost in today’s world of fast food, prepared meals, and restaurant eating.

In the early years of my marriage, I embraced many of the modern eating patterns.  When my kids were young, it was common to go out to dinner once or twice a week, and we frequently went out to breakfast after church on Sundays. Fast food was a big part of our diet and it wasn’t uncommon for us to grill steaks for dinner because we had a “taste for them.”  Much of that has changed in our household, we are economizing but not feeling deprived.  In many ways we are eating better than we did in the past.

How is that possible?  I do most of the grocery shopping and meal preparation at our home (I’m retired) and have employed many techniques I observed while growing up.  Additionally, I was divorced from my first wife and poor during the early years of my career. I developed options to survive on the smallest grocery budget possible.  Lastly, over the last decade I have taught my kids how to cook and in doing so I have refined and simplified that process. In today’s post I aim to show new budgeters some of those techniques.

Teaching my kids has been a joy. We now work as a single unit in the kitchen and have great fun making meals together. Here we are making some chicken fried rice.
My kids have also become accomplished bakers.

What this is not.

Many articles and YouTube videos have titles like: “I survived spending only $1 a day for food,” or “How I fed my family of 4 for only $25 a week.”  God bless those individuals as their methods often combined starvation with monotony.  My goal has never been to eat as cheaply as possible, it was to reduce costs.  We are well fed in our house and still have found ways to economize.

What this post is.

My goal is not to have you incorporate every idea listed.  If you are new to trying to reduce grocery costs, start by emphasizing spending less at the grocery store, and do that by using a method that works for you.  Add other savings options as you become more comfortable, ignore options that I present that make little sense to you, and incorporate things that work for you that I have neglected to list.  This post is intended to be a springboard for your creative process. It is meant to inspire you, not to overwhelm you. 

We eat regular food.

There are always ways to economize no matter what diet you ascribe to, but the more restrictions you place on your eating, the more difficult it becomes to economize.  Can you find multiple ways to reduce food costs if you are vegan, gluten intolerant, or wholly organic? Yes, of course.  However, we are traditional eaters in our home, which gives us more saving options. You may object to some of my methods, citing that we should eat how you eat.  I respect your choice, but you do you and let us do us. 

The simple steps to saving money on food.

Buy cheaper

Buy less

Make from scratch

Keep food making simple

substitute

Be varied

Use it up

How to spend less money on groceries

There are many ways to save at the grocery store, but it is unlikely that you will use all of them. The best approach is to start with options compatible with you and then add or subtract techniques that work, or don’t work, for you.

I have always been fascinated by those who are good at coupon clipping.  However, I am not one of those individuals.  Likewise, I have a niece who is a pro at using a store’s digital grocery coupons, sometimes saving 30% of her bill.  Using an app before or while I shop is a frustrating pain for me.  

Others will shop multiple stores every week to find the best deals and loss leaders.  I admire them, but I’m usually “done” after buying a week’s groceries at a single store.

Choose and become familiar with your main store.

I go to the store with the lowest overall prices to save money on groceries. In my neck of the woods that means Walmart or Aldi. I was a Walmart shopper for many years but slowly abandoned shopping there. Why? for multiple reasons: The store is gigantic, and I would end a shopping trip exhausted. There were so many choices that I would get decision fatigue comparing items and their prices.  The store has so many products that I always bought more than I intended, and I despised self-checkout when I had a cart full of groceries.  

This last reason is why I quit Walmart as my main grocery store.  I had a full cart of groceries and there were no checkers, so I was stuck sorting items on 18” counters.  I had to place things back in my cart and separate them as I checked myself out.  At the same time, I was scanning and looking up fruits and vegetables on the touch screen.  Our Walmart has an employee who stares you down like you are trying to steal something.  It is very uncomfortable.  Naturally, the machine froze, requiring me to wait for that person to release it.  My final straw was when I went through that ordeal only to have the lady at the door want to review my receipt and check every purchase that I made.  Nothing like a store that makes you feel like a criminal.  What did they find when they reviewed my cart?  They found that I paid for every item.  However, that was the final straw for me.

I switched to Aldi and have never looked back.  In our area, Aldi generally offers prices lower than Walmart and much lower than traditional grocery stores.  Aldi has its limitations, but many of them benefit me. Aldi mainly sells house brands, but their quality is good.  If you want a product, like catsup, there is only one brand to choose from. That is fine because I don’t have to ponder which item to buy.  Because they have fewer brands, the stores are small and less fatiguing. Ours has super fast checkers, taking that burden away from me, and large areas to pack groceries. Aldi does run sales, but they are very clearly marked and don’t require coupons or apps. I always spend less (compared to when I shop at any other grocery store) at Aldi.  That is even when I bite the bullet and use another store’s digital coupons.

Aldi stores are much smaller than a typical US grocery store making it much easier to shop there.

Aldi has limitations and eliminates many of the frills that other markets have. You won’t be able to get a decorated cake at Aldi, and there isn’t an on-site butcher. Additionally, Aldi has limited products. You can buy any cake mix, as long as it is chocolate, white, or yellow. Need some spices? Aldi sells them at a great price, but don’t get too exotic. I have never seen the spices as basic as bay leaves or thyme at Aldi. However, stopping at another store to get those things is easy and economical as long as I buy just what I need.

Basic spices are very inexpensive at Aldi and are of good quality. However, you will likely need to go to another grocer if you need anything beyond the basics.

Consider house brands.

When I was a resident physician I made little money.  Additionally, I was paying child support and had to live alone in my own apartment as my daughter stayed with me every other weekend. Money was extremely tight. In those days, grocery stores featured “generic” products, and I bought them because I had no choice.  However, generic was not the same as a house brand.  They were of inferior quality.  One time I opened a can of green beans that contained an entire plant, stem, leaves, and roots! 

I have found that house brands are typically very good quality, and their quality has increased. My kids like Oikos yogurt, and my wife will sometimes buy that brand if she finds it on sale. However, the Adli brand tastes pretty good and is significantly cheaper. When my adult kids said, “Dad, we prefer Oikons,” I said, “Feel free to buy it; if not, I’ll buy you the Adli brand.”  Given the option of buying their own, they happily ate the Aldi yogurt.

Of course, high-end products are likely better than house brands. I read recipes where the writer tells the reader to use a particular canned tomato or mayonnaise brand. However, we are not “high end” here. We are just regular eaters.

Consider making your coffee.

Buying coffee every day is a costly proposition. You can make your own for pennies on the dollar. Making coffee can be extremely simple or very complicated depending on your desire. Instant coffee (trust me, you can get used to it) is incredibly cheap and as easy as adding a teaspoon of the stuff to hot water. There are also a multitude of coffee makers available, from drip to French presses to Keurig style. You can buy a reasonable drip coffee maker for $20-$50.  Using coffee pods is the most expensive way to home brew, but still much cheaper than buying Starbucks. Lastly, making your coffee at home is more convenient than waiting in line at a store. 

We buy whole beans at Costco and grind our coffee for each pot. We have a Bunn coffee maker, which was expensive but has been continuously used for over 10 years. 

Do we ever buy coffeeshop coffee? Yes, but mostly when we are meeting someone at a coffee shop. 

Adjust your diet based on current costs.

Eggs were a mainstay in our house when I could buy a dozen for eighty-eight cents. My daughter would hard boil a bunch for a week’s worth of breakfasts.  I sometimes made them for lunch and occasionally cooked omelets for a family dinner.  However, eggs have gone through the roof, and we eat less of them.  I have gone so far as to purchase “egg replacers.”  Egg replacers can be used in cakes, cookies, pancakes, and other baked goods.  They don’t have the nutritional value of an egg, but they are relatively inexpensive and bind ingredients similarly to eggs.  

I mentioned earlier that we used to eat steak regularly. It is now a “special occasion” food. When we eat steak, we cut it in half, so two steaks feed four people. That amount of meat is still more than US nutritional guidelines. 

Other beef products have also become expensive, so we generally eat less of them. 

Being flexible is key when it comes to saving money.

Limit buying processed foods.

I have an older relative who no longer wishes to make meals from scratch and mostly buys premade individual frozen meals. I completely respect her actions, but her grocery costs for one person are roughly the same as what I spend for four adults. Most will tell you that processed foods are not the best for you. I’m here also to say that they are costly.  

That said, we do buy some processed foods. Every Friday, we make frozen pizzas for dinner.  By the end of the week, no one wanted to cook, and this option worked out for us. We can always find frozen pizzas on sale. Balance and common sense are the key to sustaining a food plan.

Stick with the basics.

Another reason that I love Aldi is that many of their foods are “basic.”  What are basic foods? They are foods that can be utilized in many ways. I can buy premade frozen pancakes or save money using a pancake mix.  Even better is making pancakes from scratch using flour, which can be transformed into thousands of different foods.  

Do I ever buy frozen pancakes?  No.  Do I ever buy pancake mix?  Sometimes.  Do I ever make pancakes from scratch?  Often!

If you have essential ingredients on hand, you can make many foods. If you buy a pizza, you have a pizza. If you purchase a jar of spaghetti sauce, you can make pizza, spaghetti, a manicotti bake, and lasagna. You can do all the above and more if you buy a can of crushed tomatoes. Sometimes I’ll make individual pizzas on a worknight using whatever I can find in the fridge.  The kids love them. 

Be reasonable.

My grandmother made bread for her family every week.  It was delicious!  I occasionally make bread as a treat, but I mostly buy bread.  Convenience is the driving factor.  

I sometimes make bread as a special treat, but I mostly buy it for convenience.

I occasionally buy a pre-made refrigerator meal, and my wife loves diet soda. As I have repeatedly said, balance is key to a successful plan. How many extras you can add will depend on your cash flow.  I know of families that almost exclusively drink water to save costs.  Everyone has to figure out what works best for them.

Fresh, frozen, or canned?

We do buy fresh vegetables and fruit, but we buy them carefully. Certain vegetables, such as onions, potatoes, green onions, carrots, celery, and salad fixings, are reasonably priced. Likewise, bananas and some apples can be good values. Other fruits and vegetables can be bought when purchased in season. However, how fresh is fresh?  Vegetables are transported to stores, often from different countries.  They then sit under bright lights as they get sprayed with water.  This may make them look fresh, but it also promotes mold. 

Frozen vegetables and fruits are picked and processed at the peak of their ripeness. They are often less expensive than their fresh counterparts. They also last a long time in the freezer and are flexible when cooking.  

Many people have negative feelings toward canned fruits and vegetables. However, they are picked similarly to frozen and are highly nutritious. They last a long time while being shelf-stable. I often add them when bulking up something like a stew or serve them as a side after adding a few additions to make them more palatable.  

Cook from scratch when possible.

We do a lot of “scratch” cooking.  If you know some basic cooking skills, you can make almost anything.  My family and I would agree that the food we make from scratch tastes better and is less expensive than prepared foods and even restaurant meals.

Teaching my son to use a pressure cooker.

The more you cook, the easier it gets. The same techniques are used repeatedly in cooking, so when you master a method with one recipe, you can use it in a dozen more.  

Consider buying a general cookbook like those from Better Homes and Gardens or Betty Crocker. They have time-tested recipes that use basic ingredients and are designed to work with inexperienced cooks. You can find hundreds of recipes online if you don’t want to do that. 

Cooking from scratch can save you money.

But I only have a microwave.

I have the benefit of a fully functional kitchen.  However, I know some live in basement and studio apartments and only have a mini-fridge and a microwave. You can make many things in a microwave.  I traveled out of town weekly for many years working until 10 PM.  I didn’t want to leave my hotel then and often made dinner in my room. Additionally, my kids have made many things in the microwave. We have made scrambled eggs, cakes and muffins, fish, BBQ turkey legs, rice, pasta, baked potatoes, bacon, regular oatmeal, tea, and much more.  

Adding one appliance, like a rice cooker or an electric frying pan, will exponentially open up your culinary world. If you live in a studio apartment, you don’t have to eat out every meal.

Clean as you go.

One of the biggest lessons I taught my kids was cleaning up as you go.  When I cook, I constantly wash items.  I may use the same measuring cup three times, and by the time the meal is ready, that cup has already found its way back into the cabinet. Nothing will discourage your cooking more than dealing with a mound of dishes at the end of the meal.  Cleaning up as you cook is a critical part of cooking from scratch.  

Build your supply of staple foods.

I was going to add a link to other authors’ lists of staple foods you should have in your pantry. I decided against it because many of those lists were extraordinarily long and included items I have never used in 50 years of cooking.

Staple foods are basic ingredients that you should always keep in your pantry. However, if you are budgeting, buying all of them at once is not feasible. I suggest reserving a portion of your weekly food budget for staple items.  

Start with the basic:  flour, sugar, baking powder, salt, pepper, cooking oil, garlic powder, onion powder, oregano, canned tomatoes, rice, potatoes, onions, carrots, celery, frozen ground meat, and the like.  Slowly build up your supplies as you can, watching for sales.

We have many staple items beyond this list, including curry powder, cinnamon, rosemary, thyme, hot sauce, powdered sugar, cut-up chicken, jar garlic, soy sauce, coconut milk, and more. However, we have built up those supplies slowly.  Having staple items allows you variety when cooking. There is something you can always make.  

Be flexible when cooking.

This is more of an advanced skill.  I’m not afraid to substitute one ingredient for another or to even omit an ingredient from a recipe.  The result may not be as intended, but it will still be good.  A simple example would be to exchange a can of whole tomatoes for crushed tomatoes.  However, this is just the start of what you can do.  If you don’t have a particular spice, you can often substitute with something similar or leave it out altogether.  Only have 1 pound of ground meat and the recipe calls for 1.5 pounds?  Make up the difference with another filler.  However, if you are just starting to cook, follow recipes as well as you can until you are wholly comfortable switching things around.  I’m usually successful at substituting ingredients but I still make “fatal errors” occasionally, so caution is advised. 

I made a soup/stew from whatever I could find in the fridge. Italian sausage, some wilted spinach, carrots, and this and that. It was delicious and the kids loved it. Cooking ad-lib takes a little practice so don’t be discouraged if your results are less than perfect the first few times.

Buy and eat less meat.

All meat is expensive, but beef takes the prize. Even cheap cuts are now costly.  Sometimes you can substitute one meat wholly or partially in a recipe.  For instance, you can do a 50/50 split of hamburger and ground pork when making meatloaf.  This will result in a tastier product.  We sometimes use ground turkey instead of ground beef with excellent results.

We often make many combination foods that use less meat. Think soups, stews, casseroles, hot dishes, stir fries, loaves, and more. These are delicious, filling, and nutritious and can often be made in a single pot or pan, so cleanup is a breeze. Making combination foods is as important as choosing the right grocery store to save money.

There are so many wonderful ways to use less meat. Here I’m serving a chicken and pepper stir-fry.
I picked up some butternut squash and turned it into a copycat Panera winter squash soup using an on-line recipe and my pressure cooker. I added a protein rich salad and a slice of homemade bread for a pretty darn good meatless dinner.

Consider meatless meals.

If you can go vegan or vegetarian, more power to you.  We are not there yet.  However, we will often have meatless meals that we all love. My kids get excited when we make homemade potato pancakes or mac and cheese, and my wife and I love lentil and bean dishes, which can be made with very little meat or are entirely vegetarian. There are many ways to make delicious foods that don’t require meat.

KISS

Keep it simple, silly.  Basic foods, ingredients, and cooking make a sustainable behavior change.

Do a food inventory and make a list before going to the store. 

Check out what you already have before going grocery shopping.  A time-honored way to save money at the grocer is to create and stick to a list.  Of course, don’t go to the store hungry!

Use it up.

We are good at using meat before it spoils and finishing leftovers (often for the next day’s lunch). However, we need to improve our use of fruits and vegetables. We are trying to do better by taking inventory of what fruits and vegetables are on hand and incorporating them into our meals. Additionally, we pay special attention to those items that are declining. For example, wilting celery is still terrific when used as an aromatic in a soup, stew, or casserole. 

Make what you have, not what you want.

We mostly avoid making meals based on what we have a taste for.  Instead we cook based on what we have on hand.  This eliminates another form of decision fatigue and allows us to use up items that would have gone bad.  My daughter used half of a jar of spaghetti sauce for a spaghetti lunch.  I used the remainder to make an impromptu pizza. 

Consider making a menu.

Another time-honored money-saving tip is to make a weekly menu. Sadly, I have been unable to do this formally. You may be better at this than I am. 

Make less/Eat less.

As a poor medical resident, I made enough food for two meals.  I would immediately separate half of the food into a travel container.  The first half would be my dinner, and the second half would be my lunch the next day.  I ate better than many of my cohorts who bought their food daily. 

I have constantly had to battle with obesity my entire life.  The first time that I lost 100 pounds was in the 7th grade!  I gain weight very quickly. I have adopted a way of eating called “cafeteria style.”  If you have ever bought a meal in a school cafeteria, you know you get a portioned amount of items. That is what you eat, no more.  When I eat at home, I portion out a similar amount of food and try (not always successfully) to only eat that amount.  There is no need for me to go back for seconds and thirds as to do so results in a negative outcome. 

My wife taught me the trick of using a smaller plate when eating dinner. Here I made a chicken paprikash, spaetzle, and some broccoli.

We often have leftovers that the kids take to work, but I try to make only a reasonable amount of food to avoid food waste.

Buy good items that are reaching expiration.

One of our local grocery stores often sold items nearing expiration but still perfectly good. Meats could be found for more than half off. I would buy these in bulk, portion them in vacuum-sealed bags, and then freeze them. However, recently, I have had a few experiences where I had to return meats as they were past their prime and I am no longer practicing that habit.  If you have a reputable store, find out when they re-label items for bargain prices. 

Portion out meals.

I avoid places like Costco as I always spend more than I intend.  However, I still shop there occasionally as the quality is excellent.  This is especially the case with bulk meats. 

When I get home, I divide the bulk package into meal-size portions and then vacuum seal and label each package for the freezer.  Meat can stay fresh with no freezer burn for over a year. 

We had to buy several major appliances last year from Costco, which gave me quite a few Costco bucks. I used them to buy meat that will last us a long time. I like to portion out the meat into vacuum seal bags and then freeze it.

Learn the art of preservation.

There are many ways to preserve food, here are two ways we do it:

The vacuum sealer

I have used a vacuum sealer since the early 1990s and have saved a lot of money in the process. I freeze meal-size portions of meat for main courses and vegetables for soups and stews. I’ll also freeze individual portions of leftovers that I can pop directly in boiling water for a quick lunch. Additionally, I freeze many dry items. For instance, I buy bulk rice, which I portion and vacuum seal in 1-2 pound bags.  

I now use a chamber style vacuum sealer, but a regular (and inexpensive) tray-style vacuum sealer also works well.

Name-brand vacuum sealer bags are excellent but expensive. I use off-brand brands with good results. Over the last few years, I have switched from a standard home vacuum sealer to a chamber-style one. Chamber vacuum bags cost only pennies, often the same price or lower than a Ziploc bag, but they are much stronger and more resistant to freeze burn. 

The freezer

We have owned a separate freezer for over 30 years.  It is a manual defrost model that costs very little to operate, only a few dollars a month.  The freezer allows us to buy cheaper meats in bulk (which I then divide up), buy items on sale, buy items that are good but are reaching their expiration date, and much more.  It is also convenient to have extra freeze space to hold that emergency frozen meal or an extra pizza to serve a friend who makes a surprise visit. 

Consider buying one of these appliances when you can afford to do so.

I am a gadget lover who has been buying small electrics for my entire adult life.  I have just about every gadget that you could imagine.  Some of you are likely attached to a small appliance and may covet your toaster oven, or rice cooker (to name a few)—more power to you.

However, two appliances stand out for working individuals who want to transition from eating out to making food at home. Consider one or the other (or both!).

I purchased a 2.5-quart, very basic slow cooker for $9 as a medical resident, and I used it extensively to make many different meals.  For instance, In the morning I would toss a couple of pork chops in it with a drained can of sauerkraut, a grated apple, a little brown sugar, and some caraway seeds (if I had them).  That evening I would have a delicious dinner (plus a lunch the next day) waiting for me.  

Slow cookers can be purchased for as little as $20 (fancy ones cost more) and are very easy to use. They are great for those who can plan meals in the morning, and they also save energy. I suggest a 4-quart size for an individual or small family and a 6-quart model for a larger family.

The other appliance to consider is a pressure cooker; the most energy-efficient appliance I have ever tested. Pressure cookers sometimes frighten people, but the new ones employ many safety features.  You can buy a stovetop or electric version; both have advantages.  I recommend an electric pressure cooker, like the Instant Pot, for the new cook.  If you shop around, you can buy a decent one for $60-$80.  Pressure cookers are great for those who don’t want to bother with morning prep but also don’t want to spend a lot of time cooking when they get home. Pressure cookers can cook food in about ⅓rd of the time compared to traditional cooking methods. You can make a delicious soup from scratch in under 13 minutes of pressure. A 3-quart pressure cooker works well for singles and couples, a 6-quart is best for most others.

A pressure cooker is a welcome addition if you want to make real food really fast.

With both appliances, you have the advantage of one-pot meals, which means less cleanup. It is also easy to make a larger batch for tomorrow’s lunch or to freeze away for a future meal. 

Should you upgrade your cooking gear?

You likely have everything that you need to make, just about anything that you want to make.  However, good equipment makes cooking easier.  I use an inexpensive pull-through knife sharpener every time I cook.  I use small electrics. I like quality cookware, and my Dutch oven is my favorite pot.  However, I have built my cooking gear over 50 years.  All you need is a chef’s knife, a big pot, a saucepan, a frying pan, and some cheap utensils.  You don’t need to spend a ton of money to save money.  Shop second hand or garage sales.  They are great places for cookware and appliances like crock pots.  Request items as gifts,  start a gear fund or shop sales, or do none of the above and work with what you have.  It is all good.

Conclusion.

Remember, progress, not perfection. You will likely fail if you immediately try to implement all of my suggestions. Come up with a solution to save money at the grocery store and then implement a few of my tips. Add and subtract options as indicated. 

We are not deprived in our household.  We eat very well while eating less highly processed food.  Yes, we have snacks and desserts too.  Our goal is to maximize our savings while minimizing deprivation. Try the same.

My kids made me this wonderful Father’s Day cake.
Saving grocery money is not about deprivation, it is about being reasonable. Here I’m having a delicious homemade strawberry shortcake.

Peace

Mike

Addendum: I mention my efforts and my kids a lot in this post. Please note that my wife is also involved in a lot of meal prep!

Why Pressure Cookers Remain King

I enjoy being retired because I can explore obscure topics without feeling guilty that I should be doing “real work.”

In my last post, I investigated the energy efficiency of tabletop cooking appliances and was surprised by how energy-efficient pressure cookers were. Some were over eight times more energy efficient than a large crock pot I tested. That was amazing, so I thought I would research them more.

Pressure cookers have always remained popular in countries with high energy costs or limited energy resources. However, they became less common in the US market after microwave ovens and crock pots gained popularity in the 1970s. However, they have had a significant resurgence since the introduction of the Instant Pot in 2010.  

In the late 1600s, Denis Papin developed a primitive pressure cooker called the Steam Digester. It was used to extract fat and break down animal bones.  

The Steam Digestor-Image from Wikipedia.

In 1857, Louis Pasteur published his first paper on the role of bacteria in fermentation, heralding an understanding of the role of microorganisms in cheese production and milk spoilage.  His research led to the germ theory and the role of microorganisms in disease.  

By the late 1800s, manufacturers were using pressurized steam to sterilize the contents of canned foods. In 1905, the National Pressure Cooker Company (now National Presto Industries)  started manufacturing large pressure canners for commercial operations. In 1917, the USDA established a canning pressure of 15 PSI as the standard. The USDA deemed pressure canning the only way to safely can low-acid foods (meats, beans, etc.). Canner retorts are the predecessors of the home pressure cooker.

Alfred Vischer introduced the first home pressure cooker, the Flex-Seal Speed Cooker, in 1938. However, the Presto pressure cooker, introduced at the 1939 New York World’s Fair, was the one that caught the attention of homemakers. The Presto was revolutionary as it utilized a simple twist on the pressure lid instead of relying on screws or clamps. The 1930s were a time when home kitchens were starting to modernize.  One can only imagine the significance of the pressure cooker, a device that could cook food three to ten times faster than conventional methods. Pressure cookers became a hit, similar to the home microwave oven’s popularity when they became affordable in the 1970s. The original Presto Pressure Cookers were made of aluminum.

The Flex-Seal Speed Coooker-Image from eBay seller.

World War II ended consumer manufacturing as industries were reassigned to the war effort, but demand for pressure cookers remained high. Presto stopped manufacturing pressure cookers but continued manufacturing retort canners, deemed necessary for the homefront war effort. However, they were made of steel, as aluminum was too crucial for the war. 

Companies in the US resumed production of home pressure cookers in 1945.  Since there was a high demand for pressure cookers, multiple manufacturers took on the task.  Some companies were more concerned with profit than safety and produced unsafe units. Stories about pressure cookers exploding are from this time.

Any kitchen tool can be dangerous, from a dull kitchen knife to a saucepan left unattended on a stove. Modern pressure cookers are kitchen tools, so they fit into this list. However, they have multiple safety features built in and are very safe if used according to common sense and the provided instructions.  

My pressured story

I grew up in a household that used a pressure cooker several times a week.  My mom made the most amazing soups, stews, goulash, chicken paprikash, chop suey, pot roast, swiss steak, and so much more in her Model 40 Presto aluminum pressure cooker. The cooker was built like a tank, and she also used it as a regular pot by leaving off the pressure regulator.  It was the gadget of choice to make popcorn as its thick base made burning popcorn less likely. 

This is exactly how I remember my mother’s Presto Model 40. Purchased some time in the 1940s and still in active service 80 years later. Image from an eBay seller.

This old-style unit operated slightly differently from more modern cookers.  You waited until a stream of steam came out of the vent tube before popping on the regulator, which seemed to have a spring design as it allowed you to cook at several pressures.  I’ll talk more about regulators later in this post. 

My mom used that 4-quart cooker to feed a family of seven until the mid-1970s when she bought an aluminum 6-quart Presto. She continued to use both pots depending on her cooking needs. The new pot had the more familiar “jiggler” style pressure regulator.  Both required very little maintenance.  Every year or two, my mom would send me to our local 5 and 10 store to buy a rubber gasket, and I also recall going there once to buy a rubber pressure plug.  Both purchases were inexpensive.

This Presto is very similar to the 6-quart cooker that my mom bought in the 1970s. It was functional when I inherited it, but its flakey paint made me not use it. Image from an eBay seller.

When my mom passed, my sister got the Presto model 40 and continued to use it regularly until 2017, when her operator error destroyed it. Since the Model 40 was produced in the 1940s, that pot lasted almost 80 years! I was given the 6-quart Presto but didn’t use it much.  The yellow paint on its exterior was badly flaked and looked ugly.  Instead, I bought a new stainless steel pressure cooker and continued the family cooking tradition.

I’m a gadget guy, so I have many kitchen appliances. I find learning how to use them enjoyable. During my adult life, I have used all sorts of pressure cookers in various situations, including when I camp.  I am sold on them and know they are both speedy and efficient.  However, I didn’t realize how energy-saving they were until I researched my last post. 

In that post, I discovered stove-top and electric (think Instant Pot) pressure cookers were significantly more efficient than slow cookers. I always thought the Crock Pot was the small appliance energy king.

Why are pressure cookers beneficial?

  • They cook 3 to 10 times faster than standard cooking methods.
  • They are one of the most energy-efficient cooking appliances.
  • They retain nutrients more than many other cooking methods. 
  • They are highly versatile and can cook anything from a hearty bean soup to a delicate cheesecake.
  • They can transform tough cuts of meat into tender, delectable dinners.
  • They can cook multiple foods at once without mixing flavors.
  • Dehydrated foods like dried beans can be cooked without pre-soaking.

How can they cook as fast as they do?

Pressure cookers require liquid, which they boil and turn into steam.  That steam pushes out the air in the cooking vessel, at which point the pot seals and pressure builds in the pot.  

Liquid water is always trying to turn into a gas. If you pour some water on your driveway, it will evaporate into a gas.  You can accelerate that evaporation process by adding energy to the water in the form of heat.  The water will boil, and you can see the evaporation process as steam. Water boils at sea level at 212F (100C).  No matter how much energy you supply to the pot, the liquid water will never exceed 212F. It is at equilibrium with atmospheric pressure pushing it down at 15 PSI (pounds per square inch). 

Water will boil at a lower temperature at high elevations where the atmospheric pressure is less than 15 PSI, and the converse is also true. If there were a way to increase the atmospheric pressure above 15 PSI, water would boil at a higher temperature.  A pressure cooker can do just that.

The atmospheric pressure at sea level is 15 PSI. A standard American stove-top pressure cooker operates at two times this atmospheric pressure (15 PSI + 15 PSI = 30 PSI), allowing the water in the vessel to be heated to 250F (121C) instead of 212F (100C), and this cooks food faster.

PSI’s impact on the boiling point of water. Image from hippressurecooking.com

But why does a pressure cooker cook foods faster than an oven, which can reach 400F and beyond? Food cooked in an oven has an insulating layer of cooler air around it, slowing down the cooking process. Convection ovens use a fan to break through that insulating layer partially, so they cook faster than conventional ovens. Pressure cookers eliminate the air-insulating layer by pushing it out and replacing it with scorching steam.

Additionally, all foods are mostly water. A carrot is around 88% water, and a pot roast is around 70% water. Under normal atmospheric pressure, this internal water can only be heated to 212F at sea level (just like the water in the pot itself).  However, it can reach higher temperatures under pressure, allowing food to cook faster.  That additional heat breaks down connective tissue faster, which is how a tough pot roast can turn into a delectable dinner in only an hour of cooking. 

I just told you that water’s boiling point depends on atmospheric pressure and that water boils at a lower temperature at higher altitudes as there is less atmospheric pressure. This reduction in boiling temperature can lengthen the time it takes to cook something in a pot, and the same is valid for using a pressure cooker at high altitudes. A US stove-top pressure cooker will increase the pressure in the cooking vessel by 15 PSI above the outside pressure. The general rule is you need to add around 5% more cooking time for every 1,000 feet above 2,000 feet elevation. If you are cooking something that requires 60 minutes of pressure cooking time at sea level, it may take 63 minutes at 3000 feet above sea level. 

Secret Added Time.

It may sound impressive that a pressure cooker can cook something in less time needed by traditional methods, but that time is calculated after the appliance has reached pressure. The liquid has to boil and create steam for this to be accomplished, and depending on the volume of liquid in the pot, that may take a bit. As a loose rule of thumb, assume around ten minutes to reach pressure, at which point timing begins. If a dish says it will be done in 15 minutes, add the boiling/pressure-building time.  That would be 10 min (pressure building time) + 15 min (pressure cooking time) or 25 minutes total cook time.

Quick Release vs. Natural Release.

The heat is turned off at the end of pressure cooking time, but the food continues to cook. Recipes will either tell you to let the pressure come down naturally or to release it quickly. 

In a natural release, you let the pressure come down naturally. Often, this means waiting 10 minutes and then doing a quick release. Food will continue to cook in this mode, but slower. Meats, like beef, can become dry if you do a quick release, as the change in pressure will pull moisture out of them. A natural or slow release prevents this.  

A quick release is most commonly done by tilting a jiggler-type regulator or moving a lever on a spring-type regulator (see your instruction book). Some old stove-top books may tell you to put the base in a pan of water or to carefully run cool water on the lid.  A quick-release stops cooking and is used for many delicate foods, like fish and vegetables. Editor’s Note:  NEVER place the base of an electric cooker in a pan of water, and NEVER run cool water on the lid of an electric cooker.  You will destroy it if you do. 

Different manufacturers use different pressure standards.

A word of caution: US stove-top cookers typically pressurize at 15 PSI, modeled after USDA requirements for sterilizing foods. Their operating temperature is 250F (121C).  European stove-top cookers often pressurize to 13 PSI; their operating temperature will be 245 F (118C), not 250 F. Some Chinese stove-top pressure cookers operate at 8 PSI, yielding only 234F (112C). 

Most electric pressure cookers cycle between 10-12 PSI and cook at a lower operating pressure than a standard US stove-top. This means you may need to adjust cooking time with different pressure cookers. For instance, something that would cook for 45 minutes using a standard 15 PSI stove-top pressure cooker may take up to 60 minutes using a typical electric pressure cooker. 

Some manufacturers produce cookers whose operating pressures are different from model to model.  The Spanish company Magefesa does that.  Some pressure cookers have US and European models that pressurize at different levels. The German Fissler brand cookers use 13 PSI in Europe and are recalibrated to 15 PSI for their US versions. 

A Fissler German pressure cooker. Pricey but well thought of. Image from Amazon.com

Many pressure cookers list their operating PSI (or kpa) on their product page or the cooker.  If you can’t find the operating pressure of a pressure cooker, you will have no idea about proper cooking times. 

Although making adjustments between machines may sound confusing, they are easy to implement. Cookbooks written for a particular appliance and the recipe books provided with the gadget will automatically give you the correct cooking time. Additionally, you will likely gain an intuitive understanding. For instance, if I use an Instant Pot recipe on a stove-top pressure cooker, I know to reduce the time a bit. However, when purchasing, I would stick with a standard 13 or 15 PSI stove-top or a 10-12 PSI electric pressure cooker (Instant Pot and many others).  There is a wealth of information on these devices and tons of recipes. 

A real pressure cooker danger.

Some exotic pressure cookers, like the Instagram-trending Afgan pressure cookers, may be dangerous due to contaminants.  Afghan pressure cookers use reclaimed aluminum, sometimes from old car parts. Afghan pressure cookers have been known to leach lead into foods. 

PSI vs. kpa.

Pressure can be measured in several different ways. For US pressure cookers, we use PSI (pounds per square inch); for the rest of the world, they use kpa (kilopascals).

15.0 PSI = 100 kpa  temp 250F,  cook time 23% of traditional cook time

13.0 PSI = 90 kpa    temp 246F,  cook time 27% of traditional cook time

11.5 PSI = 80 kpa    temp 242F,  cook time 32% of traditional cook time

10.0 PSI = 70 kpa    temp 241F, cook time 33% of traditional cook time

8.0 PSI   = 55 kpa    temp 234F, cook time 40% of traditional cook time

Pot-in-pot cooking.

It is possible to put another cooking vessel inside your pressure cooker. For instance, you can put a springform pan inside to make a cake or cheesecake (made under steam). You can also buy inexpensive stacking pots that fit typical pressure cookers. Using this method, you can cook two foods simultaneously, and their flavors won’t mix.  

Different types of lids.

The lid on a pressure cooker must be secure, or it will fly off when under pressure. Presto revolutionized the home cooker by using a flange/twist-on design that is still very popular today.  Some manufacturers use other methods that have also been proven to work. For instance, some third-world countries produce cookers with clamp-on lids as this style is more straightforward to manufacture.  The famous Indian company Hawkins makes cookers that use a tip-in and clip lid.  As long as the lid is secure, all is good, no matter the design.

Can I fill a pressure cooker to the top?

No. The maximum you can fill a pressure cooker is ⅔ full, as you need room to generate steam. Some foods can only be filled ½ way (for instance, rice and beans) as they tend to expand and could block the vent tube. The instruction book supplied with your machine can provide you with more details.

Maximum filling levels for pressure cooking. Image from hippressurecooking.com

Do I always have to add liquid to my pressure cooker?

Yes, your pot must have liquid to operate under pressure. Depending on the cooking time, a cup of water will usually do. Naturally, liquid dishes like soups already have water in them. 

Why does my electric cooker say “BURN” on its display?

Electric cookers are limited by their heating elements.  If you don’t have enough liquid in them or the only liquid is very thick, like tomato sauce, the cooker may burn some of the food on the bottom of the pot.  This can cause temperatures to rise, which is then sensed by a thermostat, and the cooker will shut down to protect itself. It is essential to read recipes as they stipulate how to put food in a pot.  For instance, a recipe may say to add broth and then tomato sauce but not mix the two. The broth can turn to steam, and you won’t get a “BURN” warning. 

Do I need a cooker that can operate at multiple pressures?

Some pressure cookers can operate at more than one pressure.  However, the vast majority of pressure cooker recipes use high pressure.  For most, having only one pressure is all that you need.

Can I use my home pressure cooker for pressure canning?

Probably not. First, you must ensure that your unit operates at 15 PSI (the USDA standard) and maintains that pressure.  Sterilization is based on both temperature and time.  However, there is no way that a consumer can safely calculate a pressure cooker’s internal temperature.  Poorly canned foods can breed a deadly organism called Clostridium botulinum. This bacteria produces the botulism toxin (botox), one of the most deadly neurotoxins. A very tiny amount can kill you. This botox is the same substance used to give people chemical facelifts, as it paralyzes the nerves controlling facial muscles.  However, that substance is medical grade and precisely diluted.  The bottom line is that If you are into canning, you are best off buying a pressurized canner (retort canner) designed for the job. Canners are calibrated and designed to get up to and maintain 15 PSI.

Are pressure cookers safe?  I hear that they explode.

Some pressure cookers built during the 1940 post-war times were shoddy and could rupture.  Modern pressure cookers have multiple safety devices and are safe if you follow reasonable operating procedures. Can you force a pressure cooker to explode?  That is unlikely unless you deliberately modified it, as was done in the Boston Marathon bombing.  The worst that can happen is that one of the safety mechanisms would activate and release a blast of steam, potentially spewing boiling water and food, providing you with a mess to clean up. I have used all types of pressure cookers for over 50 years and have never had a problem. However, use common sense; don’t leave the house when operating a pressure cooker.  I stay in or near the kitchen using a stove-top unit and remain within earshot when using an electric pressure cooker (which is more automatic). 

Are aluminum pressure cookers safe?  

The urban legend that aluminum pots cause Altzehiemer’s disease has long been debunked. However, aluminum may leave acidic foods, like tomato sauce, tasting metallic. This is not dangerous.  I have never tasted this, so that this ability may be genetic. Anodized aluminum does not impart a metallic taste.  

Aluminum pressure cookers are cheaper than stainless steel pots but are only manufactured as stove-top units. The American Test Kitchen advises getting a stainless steel cooker due to the metal taste issue and their concern that an aluminum pot is less durable. However, my mom’s aluminum pot was almost 80 years old before an operator error destroyed it, so I would say that they are still pretty durable.

I would choose stainless steel if you can afford it, but go for aluminum if cost is a significant issue.  

A typical aluminum pressure cooker. Image from Amazon. com

Do pressure cookers have parts that I need to take care of or replace?

Despite their advanced abilities, pressure cookers are relatively simple devices. A few parts may wear out over time.

-The gasket is a silicon ring that seals the lid and pot.  I remove mine and wash it separately.  I then replace it or leave it loose in the pot to be placed the next time I use my pressure cooker.  Never store a pot with the gasket (seal) in place and the lid locked.  This will squeeze the gasket and may impact its ability to seal. If a pot can’t hold pressure or the gasket looks damaged, it should be replaced with the same type. If you have a brand-name cooker, you can find gaskets specifically for that brand.  If you have a Chinese no-name cooker, you can measure the inner diameter of the gasket in centimeters and find a replacement on Amazon, Walmart.com, or eBay. Different gaskets have somewhat different builds, so try to find one similar to your original if you have a generic cooker. 

Some people keep several gaskets, one for savory foods and another for desserts, as a gasket can pick up odors. I sometimes use the top rack of my dishwasher to clean a removed gasket. Some say soaking a gasket in a diluted vinegar solution can eliminate “gasket odor.”  Gaskets are inexpensive, so having an extra one on hand is a good idea.

My mom would have to change the old rubber gasket on her Presto every year or two.  Current silicon gaskets are advised to be changed every 2-3 years.  However, I check mine to see if it looks good and works OK. If so, I continue to use it. My Mealthy electric pressure cooker is 6 years old, and I still use the same gasket.

-Another replaceable item is the float valve. When the cooker is pressurized, this valve pops up an indicator on the lid. It also seals the pressure cooker and locks the lid from opening. The part that may go bad on the valve is the little silicon ring at its base. If your cooker isn’t pressurizing or this silicon ring looks damaged, replace it.

Should I buy a Chinese or off-brand pressure cooker?

Brand-name cookers stand by their pots. Presto makes reasonably priced pressure cookers, and they still have parts for cookers that they sold 50 years ago.  Kuhn Rikon, Fagor, and Fissler are long-standing, reputable European companies. Instant Pot seems to support their electric pressure cookers (at least to a degree).   

However, I have used several Chinese stove-top and electric pressure cookers that seem to be well-made.  If you buy an off-brand stove-top, ensure the pressure cooker reaches 15 PSI. Some sold on eBay and Amazon do not, reaching only 8 PSI. 

As far as I know, most electric pressure cookers cycle between 10 and 12 PSI, so recipes used from one electric cooker to another don’t need to be adjusted. I have used my Mealthy electric pressure cooker for years, and it works as well as an Instant Pot.  The Mealthy was roughly the same price as a similar Instant Pot but came with extras, impacting my decision. 

Consumables, like the sealing gasket and the silicon washer for the float valve, appear fairly generic on many off-brand models (made in the same Chinese factory?). As long as you match a part correctly, they seem to work. 

I have seen some generic gaskets titled “For stainless steel pressure cookers.” I can’t say if that identifier is essential or just marketing. 

What size pressure cooker should I get?

Stove-top pressure cookers come in all sorts of sizes.  I have seen 2-quart, 4-quart, and even 10-quart electric pressure cookers, but they are usually 3, 6, and 8-quart units.  American Test Kitchen suggests getting an 8-quart cooker because “you can always cook less in an 8-quart, but you can’t cook more in a smaller cooker.  However, I disagree.  My sister has an 8-quart electric for her 2-person family and would always make too much food in it.  She got a 3-quart electric and is much happier.  I often cook for five adults and have never had a capacity problem using my 6-quart cookers.  For years, my mom used a 4-quart stove-top for a family of 7.  However, when she made stew, she cooked the potatoes separately, and when she could, she eventually bought a 6-quart stove-top unit.  

A 6-quart pot works in most situations and is the most flexible as it can accommodate relatively large amounts of cooking but can also easily cook smaller portion sizes. Remember that a pressure cooker can only be filled 2/3rds full, and some expanding/foaming foods like rice and beans should only be filled ½ full. 

First Generation Pressure Cookers.

These stove-top pressure cookers have a simple design. Air is expelled from a vent on the oven’s lid. On top of the lid’s vent tube is a regulator of a calibrated weight. When pressure builds past 15 PSI, the weight is slightly lifted, and the excess pressure is released, causing the weight to rock.  The process continues, causing the weight to “jiggle” back and forth.  These pressure cookers are sometimes called jigglers because of this. Once the regulator starts to jiggle, the operator turns down the heat so that jiggling is relatively gentle.  Timing starts once the regulator is rocking. 

Advantages:

-A straightforward mechanism that has few moving parts.

-It is evident when the unit reaches pressure and if you need to readjust the heat to achieve gentle rocking.

-These cookers tend to be less expensive than generator-two pressure cookers.

Disadvantages: 

-It is possible to lose the regulator.

-These units may lose a little more liquid in the form of steam than second-generation PCs. 

-Some people find the rocking, accompanied by a swish-swish sound, scary.

-Unless you change the regulator, these units can only operate at one PSI (not a big deal).

This first-generation “jiggler” pressure cooker uses a weighted regulator that rocks open once the pot’s pressure exceeds 15 PSI. The arrow is pointing to the regulator.

Second  Generation Pressure Cookers.

Second-generation stove-top pressure cookers use a spring-type regulator that doesn’t jiggle. Instead, these units hiss a bit (some more than others).  They usually have an indicator that says they are under pressure and may have several pressure levels. 

Like Generation-One units, you start on high heat, and when the indicator shows that the pot is under pressure, you lower the heat to maintain that pressure. For some cookers, you want to see a gentle stream of steam; in others, you are given a clear visual indicator that the pot is under proper pressure.  Your pot’s instruction guide will tell you what to look for. 

Advantages:

-May lose less moisture than Gen-One cooker.

-Quieter than a Gen-One cooker.

-Can often achieve several different pressure levels (not very important)

Disadvantages:

-May be more expensive than a Gen-One cooker.

-Some may prefer a Gen-One cooker’s clear visual and auditory cues.

Note:  My mom’s 1940s Model 40 pressure cooker likely used a spring regulator, and her first jiggler was purchased in the 1970s, so I’m not quite sure why some experts labeled jigglers as “first-generation.”

This is a second-generation stove-top unit. The arrow points to the regulator, which does not jiggle.
The arrow points to the “float valve.” As the pressure builds this valve will pop up sealing the pressure cooker and locking the lid as a safety feature.
The float valve has popped up in this photo, signaling that the cooker is sealed. Now, you need to wait until a steady stream of steam comes out of the regulator (see next photo).
Looking carefully, you can see a stream of steam coming out of the regulator. Once this happens, lower the heat until you see a gentle but steady stream of steam. This is when you start your time.
This Kuhn Rikon pressure cooker emits very little steam. Instead, you monitor the pressure indicator on the top of the lid. Once you move to the second red bar, lower the heat to maintain this pressure level.
You can see that two bars have emerged.

Both Gen One and Gen Two Pressure Cookers:

Stove-top pressure cookers can last a lifetime. 

They are high-quality pots that can be used as regular stockpots when needed. In this case, the cook leaves the regulator off/open on the pressure lid or uses a different lid. Some pressure cooker manufacturers sell a separate glass lid for non-pressurized cooking. 

What can a stove-top pot do?

Cooks Soups/Stews/Tough meats:  Yes

Has software programs for common foods: No

Set and (almost) forget operation: No

Slow cooking function: Yes (if used like a stove-top Dutch oven)

Make Rice: Yes (a favorite ability)

Make hard-boiled eggs: Yes

Make Yogurt: No

Sous Vide foods: No

Cook other grains: Yes

Make desserts like cheesecake: Yes

Can saute in the pan: Yes

Cook at 15 PSI: Yes (Many)

Can last a lifetime: Yes

Requires  AC outlet: No

Third Generation Pressure Cookers.

Third-generation cookers are electric, the most obvious being the Instant Pot. However, the Instant Pot was not the first electric pressure cooker on the scene. The first electric cooker was introduced in 1991, and the Instant Pot came out in 2010.  

I had a Nesco electric pressure cooker in the mid-90s that worked very well.  My Nesco had typical pressure cooker functions and a slow cooker setting. The Instant Pot and its clones added a lower temperature setting to make yogurt and some simple timing programs for common foods, like stew and rice. The Instant Pot became a hit because it was featured on Amazon during a Black Friday sale.  Robert Wang was wise to call the Instant Pot something different than a pressure cooker as that neutralizes Urban Legend explosion fears. People got intrigued by pressure cookers and didn’t even know it!

Advantages:

These pots offer set-it-and-forget-it capabilities. Press a few buttons, and the cooker will reach pressure for a set amount of time and then go to keep warm. In most cases, the operator is responsible for releasing pressure if indicated.  

Disadvantage:

-Requires an AC outlet.

-As a small electric, the lifespan of a 3rd generation is limited.

-Many more components than a stove-top unit.  Circuit boards, pressure sensors, temperature sensors, thermal fuses.  The list goes on.  

These pots typically cycle between 10-12 PSI, lower than a stove-top unit. Some smaller pots may have an even lower operating pressure. Only one electric pot, the Instant Pot Max, can achieve the standard 15 PSI. However, some reviewers noted that it didn’t cook any faster than typical Instant Pots, which are less expensive. 

What can a 3rd generation pot do?

Cooks Soups/Stews/Tough meats:  Yes

Has timing programs for common foods: Yes

Set and (almost) forget operation: Yes

Slow cooking function: Yes (some report poor results)

Make Rice: Yes (a favorite option)

Make hard-boiled eggs: Yes

Make Yogurt: Yes  (a favorite option)

Sous Vide foods: A few machines (poor results reported).

Cook other grains: Yes

Make desserts like cheesecake: Yes

Cook at 15 PSI: Only one machine, the Instant Pot Max.

Can saute in the pan: Yes

Can last a lifetime: No

Require AC outlet: Yes

I have used this Mealthy pressure cooker for 6 years. Prior to that I used a Nesco electric pressure cooker since the 1990s. The Nesco’s regulator was damaged, making the unit inoperative.
Electric pressure cookers operate differently than stove-top units. They may build to 15 PSI but then cycle between 10 and 12 PSI during cooking. This lowers their cooking temperature, so they cook a bit slower than stove-top units—image from hippressurecooking.com

Hybrid Machines

A few pressure cookers on the market combine their pressure cooking function with a convection oven (air fryer). This allows the user to cook food rapidly under pressure and then brown/crisp it. People who have these machines generally like them. However, they can be bulky and more expensive.

Several companies make hybrid pressure cookers that can also act as air fryers. This allows you to cook something and then brown it quickly. This is the original Ninja Foodi.
Another view of the Foodi. The pressure lid is on the pot. You can also see the air fryer lid permanently attached to the cooker.

Conclusions/Recommendations

A pressure cooker is a fantastic and safe cooking gadget.  It saves fuel, gets meals on the table 3-10 faster than conventional methods, preserves vitamins, and the food tastes great because all of the volatile aroma molecules are preserved.  Meats come out juicy and tender.  Vegetables have more vitamins, and rice, beans, and grains cook quickly.  You can make entire meals simultaneously without blending flavors with the pot-in-pot technique.  These pots will save you time and money; they use little energy while allowing you to cook cheaper cuts of meat.

The American Test Kitchen suggests buying a stainless steel cooker with a broad base for durability and quick sauteing of foods. This is good advice, but you can certainly use an aluminum cooker with excellent results. I have pressure cookers with typically sized bases and may have to brown large amounts of stew meat in two batches. I’m not working in a commercial kitchen, so super durability and saving 5 minutes of browning time are not crucial.

Stove-top pressure cookers offer the advantage of cooking at a full 15 PSI (faster cooking times). They can last a lifetime, be used as a high-quality stock pot, and be operated using many heating sources, from kitchen ranges to camping stoves.  They are the perfect cooking tool in a disaster situation. A cooker from Generation One or Generation Two cooks similarly. Remember, if a cooker operates at the same PSI, it will cook the same.

However, I suggest getting an electric pressure cooker for the first-time user.  Their ease of use and automatic nature make you more likely to use them. Additionally, dozens, if not hundreds, of websites and YouTube videos make it easy to get up and running. 

Hybrid cookers are loved by their owners due to their additional versatility.  However, that additional functionality may make an already daunting task even more difficult for a new user. Such an appliance can be purchased later if desired. 

Which type of cooker do I use?  The answer is “Yes.”.

Peace,

Mike

Images used for educational purposes.

Slow Cookers Vs. Pressure Cookers: Which Is The Energy-Saving King?

I recently came across a Yale Environment Review article that stated, “Cooking accounts for 20% of consumers’ energy use.” This percentage surprised me as I thought the energy used in food preparation was nominal. It got me thinking about appliances and their energy use.

I thought my information quest would be pretty simple if I did a Google search, but I was wrong.  I came across blogs, environmental websites, an electric power cooperative website, and even government-run environmental websites; they all got it wrong.  I’m not trying to be grandiose, but my conclusion was correct. 

If I queried, “How much energy is used by a toaster oven?”  All of the sites would say something like:

“Look at the device’s back panel for the wattage used and then multiply this number by the time in hours that the appliance was in use to find the appliance’s efficiency.  Let’s say the toaster oven’s label says it uses 1500 watts, and you bake something for 90 minutes (1.5 hours).  The energy would be 1500 x 1.5 = 2250 watt-hours of energy.”

This formula is utterly wrong, and it shocks me that so many authoritative sites use it. 

When vetting appliances for the solar-powered, all-electric kitchen in my camper van, I had to figure out how much power an appliance used to determine the size of the battery system I needed. The most significant energy draw in the van was cooking appliances that heated food, like my induction burner. I needed to know if I could practically power them with my solar/battery set-up. To do this, I used a Kill-A-Watt meter.  This device plugs between the appliance’s power cord and the wall outlet. It provides a wealth of information, including the watts the appliance uses at any moment and the total amount of watts/hours used for a given period measured in kilowatt-hours (kWh).  

I knew that an appliance’s actual wattage usage is often less than stated on its back panel, and sometimes, this difference can be substantial. I also knew many appliances don’t continuously operate at full power.  Many devices that heat up use a thermostat or other sensor to control the power output.  For example, my van’s induction burner is rated at 1800 watts, but it has never drawn more than 1500 watts, and at lower power levels, it only draws 600 watts intermittently.  

I continued my search and found YouTube videos that measured the power used instead of calculating theoretical numbers. The most eye-opening one was from the channel “Under the Median.”  They did a practical test cooking the same food in their wall oven, a toaster oven, a slow cooker, and an electric pressure cooker to see which was most energy efficient.  Their results surprised them, and they surprised me, too. Naturally, their wall oven used the most energy; most electric ovens use between 3 and 5 kilowatts when the heating element is on.  They were using their personal appliances, and due to a malfunction, a given appliance may have been using more power than it should. However, per their results, their toaster oven was more energy efficient than their crock pot.  What!  I had to investigate further. 

Our toaster oven is a Ninja Foodie with a stated wattage of 1800 watts. It is relatively small compared to other toaster ovens, which should make it more efficient (it has less space to heat up). It also features a 60-second preheat, much less than my regular oven, which takes over 10 minutes to preheat. I did a one-hour test at a standard 350F (177C) and monitored the Foodie’s power usage using a Kill-A-Watt meter.  

If I had used the standard (and incorrect formula), I would expect that the Foodie would use 1800 watt/hour (1800 watts x 1 hour = 1800 watt/hour).  However, that was not the case.  These were my results: 

60-second preheat operating wattage = 1600 watts

Baking element on operating wattage = 1300 watts

The oven cycled between 1300 and 2 watts as the thermostat regulated the temperature. It used 1300 watts around 34% of the time; the rest of the time, it required only 2 watts (likely to power the electronics).

The toaster oven used only 340 watts in one hour, not 1800 watts! If I were to make a pot roast in the toaster oven at 350F for 3.5 hours, the standard calculation would be 1800 x 3.5 = 6300 watt/hour used. However, the oven would have actually used 340 watts x 3.5 hours = 1190 watt/hour. That is a very significant difference!

I was intrigued as my results with my toaster oven were similar to the “Under the Median” results.  The “Under the Median” video also noted a significant difference between the energy used by a slow cooker (CrockPot) and a pressure cooker (Instant Pot). I had several of these appliances.  Would my results match theirs?

Limitations of my tests.

There are dozens of electric and stovetop pressure cookers and even more slow cookers. Naturally, I couldn’t test all of them, so please take my findings as generalities. Slow cookers and pressure cookers are most cost-effective when cooking foods like a tough pot roast.  My experiment was to calculate the energy differences when cooking a pot roast.  I tested six devices, but with the price of beef, I wasn’t going to cook six pot roasts. Instead, I used 4 cups of room temperature water as my “pot roast” in each device.  

Things that can impact the energy used by a device include:

-The size/volume of the device’s cooking chamber.

-The watts used by the heating element.

-The level of insulation of the device.

-The temperature or amount of the food being cooked.

-The device’s computer’s programming, if it has one.

-Other heat losses include opening an oven door or lifting the lid on a slow cooker.

Different gadgets cook at different times; I used the following cooking times:

Slow cookers, 8 hours on low.

Electric pressure cookers (10-12 PSI), 1 hour at high pressure.

Stove top pressure cooker (15 PSI-cooks faster), 45 minutes at high pressure.

I used two different power meters and ran several cooking devices more than once.  The two meters gave similar results. 

Manual slow cookers (those with only a high/low/off switch) continuously apply power to a belt-like heating element around the pot’s base.  A heat-retaining ceramic crock sits in the base and is indirectly heated by the heating element. The pot is designed so that the heat added eventually equalizes with the heat lost, resulting in a simmer (190F-210F) at the low setting. The high setting incorporates a second heating element in many of these manual pots, resulting in a final high temperature of around 300F for that setting.  I did my tests with these pots set on low, as that is what most would do if they were cooking a pot roast.

Other devices, including newer automatic slow cookers/multi-cookers and electric pressure cookers, use a thermostat or other sensing device to regulate whether a heating element is off or on. This should be a more energy-efficient method of temperature control.

Stovetop pressure cookers operate similarly to a manual crock pot. In this case, the cook controls the heat applied to the pot, eventually finding an equilibrium point to maintain proper pressure. I did not have the equipment to measure the power used on my stovetop (hob) as it is a 220v device, so I used a 120-volt tabletop induction burner that I could measure using my Kill-A-Watt meter. I used the burner at full power to reach pressure, then turned it down to a power level of 2.5 out of 10 to maintain pressure. 

Here are my results from worst to best energy use:

These appliances are vastly more energy efficient than using an oven for simple meal preparation. We are looking at good to excellent energy efficiency. 

My daughter’s college crock pot. Seven quarts? Large enough for a party or big family.

Fifth Place 

Seven Quart Manual CrockPot

Stated Wattage: 270 watts

Actual Wattage Use: 204 watts (continuously on)

Final Temperature of contents: 200F (93C)

Time in operation: 8 hours

Total energy used: 1.64 kWh (1640 watts)

I’m a huge fan of this Instant Pot Dutch oven. It is a versatile and competent cooker.

Fourth Place

Six Quart Instant Pot Dutch Oven Multicooker (basically an automatic slow cooker)

Stated Wattage: 1500 watts

Actual Wattage Use: 886 watts (intermittently on)

Final Temperature of contents: 206F (97C)

Time in operation: 8 hours

Total energy used: 1.2 kWh (1200 watts)

Note:  The toaster oven set at 350F for 3.5 hours would have used the same energy!

I bought this little crock pot for $9 over 40 years ago when I was a struggling, divorced resident physician. It has served me well, making me hundreds of unattended hot meals.

Third Place

Two and a Half Quart Manual CrockPot

Stated Wattage: 75 low/150 high watts

Actual Wattage Use: 69 watts on low (continuously on)

Final Temperature of contents: 190F (88C)

Time in operation: 8 hours

Total energy used: .534 kWh (534 watts)

This Kuhn-Rikon stovetop pressure cooker could last a lifetime with proper care.

Second Place

Kuhn Rikon Stovetop Pressure Cooker/Duxtop Induction Burner

Stated Wattage: 1800 watts for the induction burner

Actual Wattage Use: 1443 watts to reach pressure, 600 watts intermittently to maintain pressure.

Time in operation: 45 minutes (15 PSI, cooks faster than electric pressure cookers)

Total energy used: 0.43 kWh (430 watts)

I have used this Instant Pot clone for many years.

First Place Tie

Mealthy 6 Quart Electric Pressure Cooker

Stated Wattage: 1000 watts

Actual Wattage Use: 886 watts to reach pressure, then cycled to maintain pressure.

Time in operation: 60 minutes (10-12 PSI a bit slower than stovetop PC).

Total energy used: 0.20 kWh (200 watts)

My sister’s electric pressure cooker.

First Place Tie

Fagor 4 Quart Electric Pressure Cooker

Stated Wattage: 800 watts

Actual Wattage Use: 750 watts to reach pressure, then cycled to maintain pressure.

Time in operation: 60 minutes (10-12 PSI a bit slower than stovetop PC).

Total energy used: 0.21 kWh (210 watts), virtually the same as the Mealthy unit.

Conclusions

Using a small electric cooking appliance is energy-saving. My experiment and the one conducted on the YouTube channel “Under the Median” suggest that, in some cases, a toaster oven can be as energy-efficient as a large slow cooker when cooking something that requires a longer cooking time. That was surprising.

The Instant Pot Dutch Oven uses a thermostat to regulate its slow cooking temperature. This makes it more efficient than the 6 Quart Manual CrockPot, which uses low power continuously.

There was also significant energy savings when comparing the large CrockPot with its 2.5-quart sibling. You don’t need a slow cooker of every size, but a smaller one will save a few energy pennies if you are a small family or a group of one.

The pressure cookers were outstanding in their energy efficiency. They require a lot of power to reach pressure (about 10 minutes at high power in my experiment), but then they barely sipped power, turning on the heat in 10-second bursts to maintain pressure. Naturally, you will see the most prominent energy savings when cooking something longer.  If you cook something under pressure for 1 minute, the cooker still will take 10 minutes at full power to build pressure before it starts the 1-minute countdown. 

Stovetop pressure cookers may or may not use more energy than electric ones, as my experiment couldn’t use a hob and had to rely on a lower-powered 120-volt induction burner.  Still, they are very efficient and generally cook faster than an electric pressure cooker. 

Different foods require different cooking methods. Slow cookers and pressure cookers cook with wet heat, while toaster ovens and regular ovens use dry heat. Use the most suitable process for the food you are cooking. You can improve the efficiency of a toaster oven or regular oven by using the recipe’s regular cooking temperature and the oven’s convection fan (if available). The fan can reduce cooking time by 25%, saving you money.  

Should you ever use your regular oven? Of course! Regular ovens regulate temperature better than most toaster ovens and have more capacity. Beyond Thanksgiving dinner, think about making several layers of a cake or trays of cookies at once. Additionally, think of cooking an entire meal in the oven. It takes no more energy to cook an entire meal in an oven vs. a single item. For some foods, you can turn off a regular oven up to 10 minutes before the food is done.  Regular ovens are well-insulated and will retain heat for a while after they are turned off. 

Ultimately, if you tailor the foods you make correctly with the most appropriate appliance, you will save the most energy. Where I live, a kWh costs $0.13, which isn’t too expensive, but pennies add up. In the UK, electricity is around 25 pence/kWh. In other countries, it is even more.  I saw one Reddit post where someone in an unnamed country said that energy prices are increased sixfold during peak usage times (4 -8 PM) as most people are making dinner then.  Wow!

Remember, cooking energy is 20% of your total energy bill.  Anything you can do to reduce it is worth your time.  I was so impressed with how energy-efficient pressure cookers are, I decided to do a deep dive into the topic.  Stay tuned.

Happy Eating!