What’s the Difference Between a Pressure Cooker & a Slow Cooker?

There are only a few kitchen appliances, such as the slow cooker and pressure cooker, that enable you to prepare your food and leave it unattended for the day, returning home to a freshly cooked meal.

The market for both pressure cookers and slow cookers emerged due to our busy schedules and aversion to cleaning up after cooking, while still prioritizing healthy eating habits.

Although pressure cookers and slow cookers yield comparable outcomes, they are fundamentally distinct from each other, despite being useful devices for preparing meals that would otherwise necessitate a lot of effort on the part of the chef.

Therefore, the primary contrast between a pressure cooker and a slow cooker is that the former employs steam heat and pressure to cook food more quickly than traditional methods, while the latter uses low moist heat to cook food over an extended period of time.

While the primary contrast between a pressure cooker and a slow cooker is evident, there are also variations in their cooking techniques, cooking capabilities, maintenance requirements, opening mechanisms, and model options.

The Cooking Process: Pressure Cooker vs. Slow Cooker

While the slow cooker is simpler and easier to use than the pressure cooker, the latter is a bit more complex in terms of cooking method. However, after using it a few times, one can easily get accustomed to it. The pressure cooker involves locking the lid down to seal both the food and cooking liquid (water) inside the pot.

When using a pressure cooker, the liquid is heated to boiling point, creating steam that raises the pressure inside the pot. The level of pressure not only affects cooking time but also determines the tenderness of the food. It’s worth mentioning that many pressure cookers can achieve temperatures of up to 250 degrees Fahrenheit.

As the name suggests, a slow cooker utilizes damp heat to prepare meals for an extended duration that can vary from four to twelve hours. The food is put in the slow cooker pot, which is then placed inside the heating device and covered with a lid.

After setting the slow cooker to either low or high-temperature, it is left unattended until the desired time has elapsed, although occasional stirring may be necessary for certain recipes.

Are Pressure Cookers Better Than Slow Cookers?

Whether a pressure cooker or a slow cooker is better depends on the perspective and can be subjective, considering various factors such as personal experience.

Despite the fact that both pressure cooker and slow cooker have their own advantages, a lot of people believe that the former is much better in terms of food quality, cooking temperature, the Maillard browning reaction, and convenience.

  • When it comes to cooking tough meats and hearty vegetables, a pressure cooker is more effective in tenderizing them compared to a slow cooker. However, if you are cooking starchy food items, using a slow cooker will result in a thinner consistency than using a pressure cooker due to the latter’s higher temperature range.
  • When using a slow cooker, the ceramic insert prevents reduction and browning of food, making it difficult to enhance its flavor as the moisture condenses and drips back down, cooling the surface and preventing heat from reaching the top; in contrast, a pressure cooker’s higher temperature allows for Maillard browning throughout the food.
  • When it comes to meal preparation, the slow cooker is simpler to use since you can add all the ingredients and set it up, but it still requires some planning and organization such as measuring out ingredients, searing or sautéing them for more flavor before adding them, and it’s inconvenient to transport. On the other hand, a pressure cooker also requires planning, organizing, sautéing, and measuring; however, you can do all of this in the same vessel without requiring additional cooking appliances. Additionally, with a pressure cooker, you can prepare a delicious and complex meal within 30 minutes even if you are unprepared.
  • Pressure cookers are more effective in cooking beans and vegetables as compared to slow cookers, which can result in a mushy texture if cooked for an extended period.
  • While a slow cooker is limited to slow cooking, a pressure cooker can serve as a large pot for various purposes.
  • Pressure cookers are more energy-efficient as they need less cooking time and liquid, making them easier to clean up after use.
  • Pressure cookers are ideal for people residing at high elevations since the boiling point of water decreases as you go higher. Consequently, conventional cooking methods may take significantly longer to cook or may not even cook foods like beans and lentils thoroughly. However, a pressure cooker can accomplish the task regardless of the altitude.
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Opting for a pressure cooker would yield better taste, quality, and flavor in your food if you are willing to wait upon arriving home.

Can I Use My Pressure Cooker as a Slow Cooker?

It is possible to use slow cooking recipes in a pressure cooker, but adjustments must be made for them to work correctly. It’s important to keep in mind that certain ingredients commonly used in slow cookers, such as dairy and milk, arrowroot powder and corn starch, cream-based soups, and wine may not be suitable for electronic pressure cooker models.

  • Pressure cooker cooking is too fast for dairy products to blend with the rest of the food, resulting in burning.
  • If you plan to use thickeners such as corn starch, it is important to add them after releasing the pressure; otherwise, they may burn.
  • When using a pressure cooker, it is necessary to separately add flour to your recipe as it can hinder the pressure building process.
  • After releasing the pressure and removing the lid, wine should be added as its flavor remains unchanged under pressure, which may result in an unpleasant taste.
  • When using a pressure cooker, it is recommended to add tomato paste after releasing the pressure since it may not blend properly with liquids beforehand.

Can a Pressure Cooker Replace a Slow Cooker and Vice Versa?

Although it is possible to obtain comparable outcomes and cook the same dish in both devices, a pressure cooker and a slow cooker cannot be used interchangeably since their techniques are significantly different, requiring adjustments to recipes when transitioning from one to the other.

While both pressure cookers and slow cookers can produce tender and juicy meals, the cooking time significantly differs between the two machines.

The pressure cooker cooks food quickly and needs the user’s presence or proximity during cooking, whereas the slow cooker operates at low temperatures and can be left unattended for 8-12 hours.

It can be argued that owning both a slow cooker and a pressure cooker is beneficial since the former can be left unattended while the latter is capable of cooking quickly.

For those who cannot afford to buy both a pressure cooker and a slow cooker, an Instant Pot (an electric pressure cooker that can perform both functions) may be worth considering.

Similar to pressure cookers, Instant Pots are significantly quicker than slow cookers. However, for safety purposes, the user must be near the appliance during cooking.

Are Slow Cookers and Pressure Cookers Energy Efficient?

Many of us are unaware of the amount of energy consumed by our daily use electronics, and opting for energy-efficient ones can result in long-term savings, particularly if they are frequently used.

Pressure cookers are highly efficient in terms of energy consumption, not due to a lack of powerful and exhaustive heat source, but because they complete the entire cooking process at a rapid pace. Compared to traditional cooking methods, using a pressure cooker can reduce both cooking time and energy usage by up to 70%.

Regarding slow cookers, if a complete cooking process can last up to 12 hours, would using a slow cooker be detrimental?

Undoubtedly, pressure cookers are more cost-effective than slow cookers. However, despite being pricier to operate, slow cookers are still relatively energy-efficient when compared to other traditional cooking methods.

Slow cookers have various temperature options that significantly affect their energy consumption. The low setting requires approximately 8 hours to cook a meal, while the high setting takes half the time.

It is important to note that pressure cookers need only a small amount of water to cook, just enough to create steam pressure, while slow cookers require a larger quantity of liquid for cooking.

The pressure cooker is the clear winner when it comes to saving money.

High Altitude Slow Cooking and Pressure Cooking

High-altitude cities are abundant in the US, with one-third of the population residing in areas located 3000ft above sea-level or higher.

At high altitudes, cooking takes longer due to the reduced atmospheric pressure which lowers the boiling point of water.

At high altitude, the boiling point of water decreases, so at 2000ft, it boils at 208 Fahrenheit instead of 212F at sea-level. This causes a longer cooking time as the temperature of boiling water is cooler and the air is thinner with less atmospheric pressure.

While the slow cooker takes longer to cook a meal at high altitudes due to its slow cooking process, pressure cookers are advantageous in such areas as they can generate steam-pressure.

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When the pressure is increased in a pressure cooker, it also elevates the cooking temperature of the water inside, resulting in reduced cooking time; hence, recipes for pressure cookers need to be modified when cooked at higher altitudes.

  • Altitude / Cooking Time
  • 3000 ft / +5%
  • 4000 ft / +10%
  • 5000 ft / +15%
  • 6000 ft / +20%
  • 7000 ft / +25%
  • 8000 ft / +30%
  • 9000 ft / +35%
  • 10000 ft / +40%
  • 11000 ft / +45%
  • 12000 ft / +50%


Are Pressure Cookers and Slow Cookers Easy to Clean?

It is necessary to clean both pressure cookers and slow cookers after every cooking cycle, as with most cooking tools and equipment. Maintaining hygiene is crucial when dealing with food, and a deficient cleaning regimen can lead to the growth of bacteria, which should be avoided.

One may wonder if pressure cookers and slow cookers are easy to clean, considering the effort required to clean them after every use.

Pressure Cooker

There are various types of pressure cookers available:

  • Pressure cookers that run on electricity
  • Pressure cookers for use on the stove

Both pressure cookers and slow cookers are composed of four essential parts: the container, lid, sealing ring, and valve that releases when the cooker has pressurized.

The main objective while performing maintenance on a pressure cooker is to ensure that there are no food residues left on the sealing ring or its rack, as this can hinder the cooker’s ability to seal properly.

If the gasket, which is the sealing ring, is not in position, the pressure cooker will become ineffective as the steam pressure will leak out. It is recommended to replace these rings every year.

It is important to note that contemporary pressure cookers have parts that are safe to clean in a dishwasher, and the instruction manual can provide information on which components are suitable for this method. If any parts are not dishwasher-safe, they can be washed using warm water and soap.

Should you accidentally burn food in a pressure cooker, the insert may develop stubborn stains that are difficult to eliminate. To determine whether or not it is safe to use potent cleaning agents on the pressure cooker, consult the manufacturer or refer to the instruction manual.

If harsh cleaning products are not recommended, opt for a gentler alternative and allow it to soak in the pressure cooker for 30-60 minutes, which will gradually loosen the stains. Once the time has elapsed, use a soft sponge to wash away any remaining debris before allowing the appliance to dry.

Slow Cooker

When it comes to cleaning your slow cooker, refer to the instruction manual for guidance on suitable cleaning materials. Typically, warm water and soap are safe for all types of slow cookers, but for stubborn stains, you may require the use of baking soda, ammonia, or vinegar.

Most slow cookers typically have parts that can be easily removed and cleaned separately with warm water and soap in a gentle manner.

  1. Disconnect the device from the power source before cleaning.
  2. Gently clean the base of the slow cooker with a damp cloth to remove any simple stains.
  3. Dismantle removable parts and thoroughly clean them
  4. Clean the device using a paper towel
  5. To eliminate stubborn stains, make a paste by combining baking soda and water. Apply the paste to the affected area, allow it to react, and then gently scrub it away using a soft sponge, scrubber, or toothbrush.

Similar to other cooking appliances, both pressure cooker and slow cooker need regular cleaning, but it is not a difficult task and can be completed within 5 minutes, unless the bottom of the cooker is severely burnt.

Are Instant Pots and Pressure Cookers the Same Thing?

It’s a bit of both. The Instant Pot is a versatile appliance that can perform various functions such as steaming, warming, cooking rice, electric pressure cooking, and sautéing/browning.

Regarding the difference between a pressure cooker and a slow cooker, an Instant Pot, which is an electronic pressure cooker brand, can be considered as one. It has its own heating mechanism, internal thermostat, and digital display that are comparable to other pressure cookers available in the market. Moreover, it does not need a stove for operation.

The Instant Pot is equipped with sensors that automatically regulate the temperature and internal pressure of the cooker. These sensors detect a drop in pressure and trigger the heating element to increase the temperature, leading to an increase in steam pressure.

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Because of the Instant Pot’s automatic regulation of these factors, the heating component can be utilized intermittently as required.

Ever since I bought my Instant Pot, I’ve been using it on a regular basis. I was amazed by how well it cooked and how easy it was to operate. It didn’t hurt one bit that the model I bought is cheap on Amazon.

Unlike electric pressure cookers like the Instant Pot, stovetop pressure cookers need to be manually operated and demand more effort to achieve the desired results as users have to regulate both temperature and pressure, making it more challenging to use.

Are Slow Cookers and Crock Pots the Same Thing?

Pressure cookers and slow cookers are not the same thing. Although a Crock Pot is a type of slow cooker, it has distinct characteristics that set it apart from other brands. The primary dissimilarity between a Crock-Pot and other slow cookers is that the former heats from both the bottom and sides of the cooking unit, while the latter only heats from the bottom.

Aside from that, they yield comparable delectable outcomes and consist of identical components: a cover, a container, and an internal heat generator.

Although a slow cooker and a Crock-Pot are often used interchangeably, it’s important to note that while all Crock-Pots are slow cookers, not all slow cookers are Crock-Pots due to the additional features that Crock-Pots possess.

Pressure Cooker and Slow Cooker F.A.Q

Which slow cooker would you recommend? Well, I’ve got a favorite cooker that I always recommend to my friends. You can’t go wrong with it. It’s a high-quality product with a low price tag and a bunch of features. It’s the Black & Decker and you can find it on Amazon.

Is it worth investing in a pressure cooker? Absolutely. I have wasted money on countless things that were not worth it, but my pressure cooker is not one of them. I no longer have to spend as much time planning and cooking meals because all I have to do is chop the ingredients and let the appliance handle the rest. It usually takes me only 10-15 minutes to prepare a meal, and then an additional 30-40 minutes until it’s ready to be served.

I suggest taking a look at this article I wrote some time ago, which outlines the benefits and drawbacks of pressure cookers.

Do Pressure Cookers reduce the amount of nutrients? This is a common query when discussing pressure cookers. I understand why people are concerned about their health and nutrition. It is essential to be aware of how our food and cooking methods affect us. Therefore, I have written an article on pressure cookers and their capacity to maintain nutrients.


Once you have comprehended the contrast between a pressure cooker and a slow cooker, you may also realize their resemblances. There appears to be a minor intersection between these cookers. They have some shared features, but they are also completely distinct when examining their operation.

While the unique features of pressure cookers and slow cookers may be more suitable for some individuals than others, it is my belief that owning one of each would be advantageous. In cases where space or budget constraints only allow for one appliance, I personally recommend choosing an Instant Pot or electric pressure cooker.

Having a slow cooker is something I enjoy and use frequently, but whether you prefer a pressure cooker or a slow cooker depends on your specific needs and preferences. If you have the luxury of planning ahead, then a slow cooker is an excellent choice. However, if you’re feeling overwhelmed and tend to make meal decisions on the fly, then a pressure cooker can significantly cut down on cooking time.

Pressure cookers and slow cookers are both highly convenient and require minimal effort from the user during cooking. However, with a pressure cooker, it is necessary to depressurize the cooker before opening the lid, which can make it difficult to monitor the food’s timing and temperature accurately.

While adjustments can be made during cooking, each time a pressure cooker needs to pressurize, the cooking time will increase. In contrast, numerous slow cookers are equipped with glass lids that enable the user to monitor the food throughout the process.

Regardless of which one you choose, I am confident that you will be satisfied with your acquisition. Enjoy preparing your meals and thank you for taking the time to read.

You can also check this video about “What’s the Difference Between a Pressure Cooker & a Slow Cooker?”

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