Instant Pot Making Noise or Hissing While Cooking – Causes and Fixing!

The modern kitchen is delighted with instant pots. They offer an incredibly effective and practical method for electric cooking. The quick pots are adaptable for experimenting with recipes, crispy roasting, steaming vegetables, making yogurt, and many other things.

The branded multi-cooker has cooking modes for rice, air fry, slow cooking without pressure, and pressure cooking. Although we’ve all experienced them before, the instant pot occasionally emits hissing noises when cooking, which can be slightly alarming.

We’ll be looking into why that occurs in the future and what to do when it does.

Why is My Instant Pot Hissing?

The pressure cooker attachment on the instant pot works by heating food inside a tightly fastened lid. As a result, steam is compressed, and the temperature rises over the boiling point of water.

The Pot’s Entire Interior and Exterior is at the Same Temperature

The steam pressure builds up in the instant pot until it reaches a pretty high peak, even though the steam cooks the food considerably more quickly than on a typical stovetop.

The safety valve automatically opens to relieve the appropriate amount of surplus pressure. Unfortunately, the hissing sounds are caused by the pressure leaving the pot through the valve.


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While it’s acceptable to worry and stress a little, hissing is typical for all pressure cookers, including instant pots. The instant pot lid is designed to expel internal pressure —when in excess— to a reasonable amount so your food cooks properly.

As pressure increases, the safety valve opens, aiding the output of excess steam, sometimes facilitated by the rattling of the pot’s lid. This is an everyday experience as long as the instant pot is used for pressure cooking. At every point of the cooking process, this is usually observed.

Is My Instant Pot Supposed To Hiss?

While it’s acceptable to worry and stress a little, hissing is typical for all pressure cookers, including quick pots. When internal pressure builds up, the quick pot lid is made to release it to a safe level, ensuring that your food cooks thoroughly.

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The safety valve helps the output of surplus steam when pressure rises by opening, which is occasionally assisted by the rattling of the pot’s lid. This is typically seen during the entire cooking process. This is a regular occurrence as long as the instant pot is utilized for pressure cooking.

Is It Safe For My Instant Pot To Hiss?

Yes. It’s entirely secure. Instant pots are designed to hiss. Hissing is acceptable and secure.

However, if the hissing noise continues for a more extended period, a problem may need to be addressed. Either the pressure cooker wasn’t properly sealed, or there’s damage.

In all scenarios, you are encouraged to retrieve the written manual accompanying your instant pot and adhere to the troubleshooting guidelines to determine the issue. You might also watch similar videos online to brush up on your expertise.

A rattle or hissing sound from an electronic pressure cooker like the instant pot should last only briefly. Similarly, it is anticipated to sizzle silently and barely be audible.

This is so that during cooking, the temperature and pressure in electric pressure cookers may be maintained at optimal levels thanks to computer chips. Additionally, the chips automatically control the heating system of the cooker and prevent it from going above the designated heat requirement.

As it prepares to quickly release pressure after cooking, the instant pot makes a faint hissing sound.

Does The Instant Pot Make Noise While Cooking?

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Yes. While cooking, the instant pot is intended to generate noises like rattling and hissing. Just a constant shhh sound, not like a hiss of contempt or disgust. The internal pressure buildup that occurs while cooking is the source of this.

To control the cooking process, the safety valve on the sealed lid opens, removing excess pressure from the pot. It’s essential to pay attention and listen since some noises, such as blaring or hissing, are unexpected yet point to a technical problem that must be fixed immediately.

What Causes My Instant Pot To Hiss?

Along with additional features, the instant pot performs the duties of a pressure cooker.

Every pressure cooker can maintain pressure inside of a sealed cover. As the temperature climbs over the boiling point, this pressure helps the cooking process to go more quickly. More accurately, the system’s temperature and pressure interact.

The safety valve on the pressure cooker’s lid opens to let an escape when the pressure builds up to a specific point. The hissing “shhh” sound is created as the surplus steam from the kettle is discharged.

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Most mishaps caused by user mistakes can be easily avoided with simple measures. Numerous safety features have been tested on the instant pot, confirming that using it is safe. It’s not exploding, and it won’t blow up any time soon.

How To Stop My Instant Pot From Hissing?

Food is only cooked in your instant pot if it hisses. Here are some troubleshooting pointers to aid if it persists for an unusually long time.

1. Thoroughly Inspect Before Cooking

The pot may leak around the top seal if you hear it hissing continuously. It’s also possible that you wholly or partially neglected to seal the pressure valve before cooking. This typically happens when you’re distracted by too many things or even hooked on the television.

Ensure the valves are securely fastened and the lids are properly sealed. Make sure to look for any more seal damage. Verify the seal is not brittle, ripped, or otherwise damaged. So, you must exercise extreme caution and vigilance.

In this situation, the instant pot takes a long time to reach high pressures, which provides another indicator besides hissing sounds. Cooking is also slowed down because some built-up steam is expelled through the opening lid or unsealed valve.

2. Substantial Liquid Should Be Added to Your Instant Pot

It’s crucial to think about adding enough liquid to your cooking if you want your instant pot to function at its best. For instance, some foods and recipes would call for your instant pot to hold more liquid than usual. Utilizing steam, a pressure cooker builds pressure that finally causes the food to cook. To create this pressure, the inner pot must contain at least one to two cups of liquid.

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Using the Sauté option will cause the liquid to diminish and the food to thicken if the final product is too runny or thin after cooking. Alternatively, you can use thickening ingredients like flour, cornstarch, and potato flakes.

To add taste, use different liquids for water. For instance, if you want a vanilla flavor, you might prepare the spice in a separate bowl, add a little water or liquid, and stir before adding it to the instant pot.

3. Observe The Temperature

Although it might take longer with an electric cooker, lowering the heat on the stovetop will assist in stabilizing the pressure cooker. An electric pressure cooker requires more time to reduce temperature and cool off its components than a conventional pressure cooker.

Use more than one heating element (ideally two) whenever you cook if your instant pot hisses more frequently than usual. In this approach, one heating element will assist the cooker build up pressure while the other will help it cool down. For greater effectiveness, you might as well use three.

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4. Make Sure The Sealing Is Fitted

If you hear steam hissing from the edges of the lid while cooking, the sealing ring may not be adequately positioned or may even be completely damaged. This can be resolved by opening the instant pot and repositioning the sealing ring until there is no longer any apparent vacuum.

A quick check to confirm: Try spinning the ring at random first, then spin it around the ring rack. It is appropriately positioned if it spins around the ring rack with the same force you used to push it.

If it doesn’t rotate ideally, try positioning it again; this should help. If, at first, you don’t receive the desired results, keep steadily rotating the ring around its rack. You quickly realized that it swirled with force you applied to push it.

Frequently Asked Questions (FAQS)

Is the hissing coming from my pressure cooker normal?

A hissing sound and rattling of the wobbler on the lid are produced when safety valves open just enough to release excess pressure when the pressure reaches a certain level. Because they can control pressure more effectively, electric pressure cookers typically have the quietest operation; however, even a slight hiss is typical.

Should steam be coming out when I’m cooking in my pressure cooker?

You can notice steam during the pressurization process coming from the lid’s edges or the black pressure valve on the lid’s top. This is entirely typical. How filled the pot is and how chilly the components are two things that determine how long it takes to pressurize.


For the majority of their cooking, instant pots operate quietly. You need not be concerned because their design allows them to periodically hiss, as was previously said. Yet not inordinately. More cause for concern arises when their hissing is extremely loud or prolonged. Follow the above recommendations to better comprehend the situation and find a solution.

Particularly simple and effective to use our instant pots. Additionally, they are a quick cooking method because they can maintain pressure while cooking.

Should your instant pot, therefore, emit that shhh-like hissing sound? It should, indeed. But this shouldn’t stay too long and shouldn’t be too loud either.

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