What Does a Pressure Cooker’s Safety Valve Do (Fixes Functions)

One of the most widely used kitchen appliances is a pressure cooker. A pressure cooker can be used in nearly any home because it simplifies the preparing and cooking of a range of foods. You will find it in almost every home.

In the kitchen, a pressure cooker may be used for a variety of tasks. It can be used in the cooking of a wide range of delectable dishes. If you’ve never used a pressure cooker before, it’s understandable that you’ll be skeptical at first, but trust me when I say that it’s a simple procedure that you will pick up easily. When using a pressure cooker, you must proceed with caution.

Pressure cooking requires the steam to get trapped inside the cooker and when the pressure increases the pressure is released and then again the pressure gets built and this helps to cook the food properly. When we talk about pressure cooking it is very simple and complicated at the same time. A pressure cooker is made with small components and every little part of it is very important.

Today I am going to discuss the pressure cooker’s safety valve. Many people who are new to pressure cooking or those who are going to purchase a pressure cooker might come up with a question: what does a safety valve in a pressure cooker do? What is its function? I will also discuss some of the reasons why your pressure cooker’s safety valve can fuse and how to fix this issue. If you have got a pressure cooker or you are going to purchase one then you must read his article carefully.

What is a pressure cooker’s safety valve?

There is a safety valve in your pressure cooker which is present on your pressure cooker’s lid. This valve helps the pressure cooker to prevent it from bursting. It helps to allow the steam that is created inside the cooker to be released so that the pressure gets less.

We all know how a pressure cooker works and it has so many advantages like the speed of cooking, nutritious food, energy efficiency, and many more. Even after so many advantages and so much up-gradation over the years, there is one constant worry while using a pressure cooker which is the pressure cooker getting burst suddenly. This can be a very huge problem resulting in an injury too.

This is the main reason why there is a safety valve present in your pressure cooker. A safety valve’s main function is to keep your pressure cooker from bursting by releasing the steam that is trapped inside your pressure cooker. A safety valve is a system of protection. If the internal pressure is higher than controllable thresholds if the pressure cooker does not release excess pressure. The safety valve will break as this occurs and release the extra pressure to avoid an explosion. The valve is usually located on the lid of the cooker.

How does a safety valve in a pressure cooker work?

A safety valve is present on any appliance or equipment that uses high-pressure levels to work. This is nothing but a safety mechanism that helps the appliance to prevent any kind of situation where the pressure increases so much that the appliance bursts.

It helps to release the pressure and prevent any kind of explosions. Here is how a safety valve does that:

  1. There is a nozzle in the inner part of the safety valve that senses if there is an increase of pressure inside the cooker.
  2. The disc begins to lift and opens the outlet to relieve excessive pressure as the pressure replaces preset amounts.
  3. The weight of the safety valve forces the disc into position again as the resistance reduces and seals the outlet.

What are the reasons due to which a safety valve can fuse?

A safety valve is one of the best features of a pressure cooker and it is a fine feature that should be present.

One thing that we all should keep in mind is that even if the valve is present we should always try our best to keep the pressure cooker from reaching very high-pressure levels. One should never leave the cooker unattended and for taking care of the safety a user manual should be properly read.

The below mentioned are some of the things that can cause a pressure cooker to reach very high levels of pressure.

Overfilling the cooker

One must always make sure that the cooker is filled to the proper extent. Overfilling it will always lead to problems.

If it is overfilled then the food also won’t get properly cooked. Some food items swell when they are cooked and require more space than they initially did when placed inside the cooker. Things like these should always be considered, if the cooker is overfilled then it might block the release valve and the pressure will not get released which can result in explosions as well.

Cooking ingredients that can froth

You need to be careful which such cooking ingredients tend to froth.

Pasta, beans, rice, oatmeal are some of the food items that can easily froth when they are cooked and there is a boiled-up foam released that can block the valve to release the pressure that is built inside.

Damaged pressure cooker

In case the pressure cooker is damaged then it won’t be able to regulate or control the pressure levels.

There can be chances where the pressure that is inside the cooker rises over the limits and this can cause troubles. Your food won’t get properly cooked or it might overcook.

If the pressure cooker is damaged then the steam won’t get released creating immense pressure which might burst the safety valve. One should always keep checking the safety valve and venting valves and if needed it should be replaced or repaired.

Liquid levels

The liquid levels inside the cooker should be properly checked. If you are cooking with a pressure cooker one should always precisely add a sufficient amount of liquid needed.

If you fail to add the required amount of liquids needed for the cooking process the liquid will start to boil during the cooking process and the cooker will get dry. This can increase the pressure levels inside the cooker and rise above safe levels. This is one of the reasons why a safety valve inside the pressure cooker can fuse.

Adjustments weren’t properly made

There are traditional pressure cookers and stovetops that require constant monitoring and adjustments are to be made when required.

Nowadays electric pressure cookers adjust and manage everything on their own. While using a traditional pressure cooker one must always keep an eye on the pressure gauge. If the temperature gets high it should be released manually. If you don’t do this the temperature can rise and this can fail the safety valve.

The cooker is operating on high flames

If you are cooking on very high or large flames then these flames can reach or expose the sides of the cooker.

This can result in the overheating of the cooker. This can cause the pressure cooker to blow the fuse.

How to replace a pressure cooker’s safety valve?

If you have got a safety valve which is damaged and it is not working properly I would strongly advise you to replace it. You can easily replace it as a safety valve for your pressure cooker.

You can replace a safety valve on your pressure cooker in two simple ways. We will look at both methods and they are pretty simple.

First method

The first method is the one in which the approach to the safety valve is from the outside, you need to insert a blunt knife or you can try to turn the screw in the hole and this is done from the outside while you need to hold the crew from the inside. Now turn the knife as it will turn the screw and loosen up.

Second method

In the cover, the second method is made. Turn the screw with a hammer or stick until it is sufficiently loosened to extract it.

After following any of the methods now you need to insert the safety valve and make sure that it is placed properly.

Click here to buy a safety valve for your pressure cooker



Can I cook with my pressure cooker if it has a broken safety valve?

The answer here is both yes and no. If you ask me then I would strongly recommend not to cook with a pressure cooker if it has a broken safety valve.

The question isn’t can you cook, it is should you cook and you should not. If a safety valve is damaged then cooking with that pressure cooker can result in something worse and one should always avoid this as much as possible. You might be thinking of saving money by cooking with a pressure that has a safety valve which is broken then this will cost you a lot more later. Nothing should be kept above your safety and your family’s well-being.

It’s not possible to cook food without a safety valve as the pressure cooker will fail to maintain the temperature and pressure inside. You won’t be able to cook in a cooker that has a missing safety valve. If there is no safety valve the steam won’t get trapped and keep releasing which won’t create pressure.

If we talk about a broken or damaged safety valve then yes it’s possible to cook with a pressure cooker that has a damaged safety valve but it can be dangerous at the same time. If the valve is shut and not letting the steam out then cooking is possible. It is dangerous because if the pressure inside the cooker keeps on increasing and your safety valve is not able to let it out then this will result in an explosion which can be very devastating.

If a safety valve is damaged one should always try replacing it. Repairing such things isn’t an option so calling customer support and asking for help is a better way. You can also try replacing it on your own. You just have to get the same valve and then follow the above-mentioned steps.

Why does a pressure cooker release steam?

Since a hissing noise is made as steam is emitted, this is one of the most often asked questions.

The process is similar to that of a tea kettle. When the water inside the kettle becomes very hot, it raises the lid to remove the steam that has built up inside, making a whistling sound in the process. The pressure cooker operates in a similar manner, but the foundation is the same. The only distinction is that when the steam is removed from a pressure cooker, the food does not need to be ready. If you want to understand that this steam release occurs, you must first grasp the overall idea of how they operate and what they do.

How is the liquid trapped and why?

A seal exists between the lid and the base of the pressure cooker in a pressure cooker. Pressure is produced when the vapour expands, and the temperature within the cooker quickly rises.

This increased temperature and pressure infuses the vapour into the meal, boiling it in a fraction of the time that any other method does. If you use water to cook in your pressure cooker, the pressure cooker can lift the boiling point of the water past the normal boiling point of 212 degrees F. This rise will be somewhere between 212 and 250 degrees Fahrenheit, which is why your pressure poker needs to expel some trapped energy.


A safety valve is one of the most important components of a pressure cooker. While using any appliance, safety should always be the primary concern.

A safety valve helps in creating the pressure inside the cooker by trapping the steam and when the pressure level increases the steam is released by the valve to ensure a balance in cooking. This helps in cooking food properly. A broken or damaged safety valve can be a huge problem so one should always be sure that the safety valve is intact and working properly.




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