Why Is My Instant Pot Hissing? Don't Worry, It's Going To Be Okay

Why Is My Instant Pot Hissing? Don't Worry, It's Going To Be Okay

6 min read

That strange hissing sound coming from your instant pot might be frightening. We've all been there, but understanding why it's hissing can help you manage the situation better.

So, what causes an instant pot to hiss?

When the pressure within an instant pot rises to dangerous levels, the safety valves will open with a hissing sound. This pressure release from the pot causes a hissing sound as it exits the instant pot. Instant pots often produce less noise than other types of pressure cookers.

Is Hissing From a Pressure Cooker Normal?

Yes, it is typical for your instant pot to hiss when cooking. When the pot heats up, the moisture in the air condenses and escapes via any hole, including the valve. It is the source of the sound. As the pot heats up, the pressure within will rise until it reaches the preset level, when the hissing will cease.

Your instant pot includes a steam release valve that generates a hissing sound as it releases steam. The release valve jumps up and hisses when you turn on the pressure cooker. The release valve prevents the pressure cooker from exploding by allowing steam to escape. The hissing ceases when the meal is cooked.

If the hissing concerns you, switch off the pressure cooker and allow the steam to escape before cooking the food. Alternatively, you may mask the sound by placing a cloth over the release valve. There's no reason to be concerned about the hissing sound—quite it natural.

Why do Instant Pots Make Hissing Noises?

To put it another way, the noise or hissing produced by the instant pot is comparable to the hissing produced by a kettle. In this context, a kettle is more likely to hiss when the steam within is hot enough to force the lid off.

It is accompanied by a whistle, which allows the user to determine when the water is ready. A similar technique may be used for instant pots as well. However, just because your instant pot is hissing doesn't mean the meal is prepared.

When the instant pot reaches maximum pressure, the steam or even a little water inside it is expelled. The instant pot accomplishes this by relieving tiny quantities of stored pressure within the pot. The quick pots have a built-in ability to withstand high-pressure cooking without hissing. Still, there is no assurance that it won't happen.

Is it Safe if My Instant Pot Hisses?

Yes, your instant pot is perfectly safe if it hisses. However, if the hissing sound continues for an extended time, there may be a problem. There is a potential that you should have correctly seated your instant pot or that something was damaged.

The printed documentation that came with the instant pot may assist you in recognizing and fixing the problem.

The instant pots should not hiss, produce noise, or rattle for long periods. Even if it hisses, it should be shallow and nearly unnoticeable. The instant pot's internal computer chips keep the temperature and pressure at a "food-acceptable" level. Because the instant pot is engineered to release pressure quickly, it should hiss a little after you've finished cooking.

Can a Hissing Instant Pot Explode?

The most straightforward and promising response to this question is NO. Don't freak out if your instant pot starts hissing. So you can unwind and not worry about it.

It is because they come standard with a whopping nine different safeguards meant to keep them safe in case of any of the mishaps above: lid closure detectors, leaky lid protection, anti-blockage vent, temperature controls, high-temperature warning, lid lock under pressure, automatic pressure control, excess pressure protection, extreme temperature and power safeguards, and pressure regulator safeguards.

The features are intended to prevent the instant pots from being used dangerously. If anything unexpected occurs, the instant pot will stop immediately or automatically lower the internal pressure.

What is The Source of The Hissing in My Instant Pot?

When your Instant Pot is turned on, it makes a high-pitched hissing noise. However, have you ever pondered the source of that noise or whether it's really normal?

To better comprehend this issue, let's look at some of the probable causes of the Instant Pot's hissing noise:

Not Properly Sealed Instant Pot

The hissing and rattling noises might be frightening, but they are typically harmless. These noises usually indicate that the pot needs to be adequately sealed.

To effectively seal the pot, ensure that the lid is properly on and that the sealing ring is in place. If the pot is not well sealed, steam may escape, causing pressure to build up and making the pot loud.

Inadequate Liquid Amount

Has your Instant Pot ever hissed at you because you used too little liquid? If this is the case, you are not alone. The Instant Pot is a popular kitchen tool, but it may be temperamental if not used properly. One of the most typical errors is needing to add more liquid.

Because the Instant Pot depends on steam to generate pressure and heat, it will hiss if there is insufficient liquid. Furthermore, the meal may begin to adhere to the bottom of the saucepan and burn. Always add 1 cup of liquid (ideally water) to your Instant Pot before cooking to prevent this.

High-Pressure Development

The pressure within the instant pot should be monitored carefully. If too much pressure is in the pot, it will begin to hiss. It is your signal to relieve some pressure before it builds up too much. Otherwise, the meal may explode and cause quite a commotion.

So, if you hear that distinctive hissing sound, manually relieve some of the pressure before it becomes too great.

How To Stop An Instant Pot From Hissing?

Here are some actions you may take to get your instant pot to stop hissing.

Checking Everything Before Cooking

If you want to use an instant pot for your meals, you definitely need to plan ahead. Check the valves and make sure they are securely sealed.

Also, thoroughly examine the cover to verify there is no interference between it and the bottom portion of your instant pot.

Lower The Temperature

It is as simple as lowering the heat on stove-top heaters, and the pressure cooker will steady. However, lowering the temperature and allowing the components to cool takes time with electric cookers, such as pressure cookers.

If your instant pot hisses more often than normal, you should use two heating elements whenever you cook. One of the heating components will aid in the generation of pressure in the cooker. In contrast, the other will aid in the reduction of temperature.

Fill Your Instant Pot With The Right Liquid

Some meals and recipes may need more liquid in your instant pot. Consider adding more broth or water if you want the instant pot to perform optimally.

If your completed dish is overly liquid or thin, using the sautéed option will cause the liquids to reduce and the contents to thicken. Thickening agents such as semolina, cornflakes, and cornmeal may be substituted.

Don't Fill Your Instant Pot Too High

Overfilling will result in taste and texture loss, among other problems. It is caused by the high pressure created by the liquid excess, and excessive pressure causes food to spoil.

In terms of risks, food may block the pressure valve if the pot is full. If the pressure release valve is closed, the danger of high high-pressure levels rises. Suppose the safety valve cannot vent adequately. In that case, the lid can no longer regulate pressure, which may rise to hazardous levels.

Set The Sealing Ring In Place

If you discover the sealing ring is not positioned correctly and steam is escaping from the corners, while making a hissing sound, you may want to reposition it. Open the instant pot and press the sealing ring around the ring rack until it is fully inserted and there is no visible gap.

The ring may be turned around the ring rack to verify. It's correctly positioned if it spins around the ring rack with the same force you used to push it. If it rotates properly, try again to position it.


The sounds might be more annoying if you need to know where they're coming from. As we already know, pressure cookers tend to hiss often. If your instant pot sometimes makes a noise, don't be frightened. It occurs during food preparation, and certain situations make it possible.

However, if the hissing sounds unusual or lasts too long, you should be worried. It would be ideal if you were looking for broken or flawed products. The solutions provided above help you determine why your instant pot is hissing and resolve the problem.

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