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What is the valve sealing position on Instant Pot?

The Instant Pot is one of the most popular electric pressure cookers on the market today. It uses electricity to generate steam pressure within a sealed pot to cook food quickly and efficiently. One important component of the Instant Pot is the valve that seals the pot during the cooking process. This article will examine the valve sealing position on the Instant Pot and explain its function.

What is the Instant Pot?

The Instant Pot is a multi-use programmable electric pressure cooker manufactured by Double Insight Inc. It consists of a stainless steel inner pot surrounded by an electric heating element. The pot sits within an enclosed outer casing. There are several models of Instant Pot that vary in size, functions, and features, but all operate on the same basic principles.

Some key features of the Instant Pot include:

– Uses electricity to generate pressurized steam for quick cooking
– Has multiple functions including pressure cooking, slow cooking, sautéing, steaming, and more
– Has built-in safety mechanisms like overheat protection and lid locking
– Comes in 3, 6, and 8 quart sizes

The Instant Pot is able to cook food up to 70% faster than traditional cooking methods through the use of electric pressure. With its versatility and speed, the Instant Pot has become very popular for busy home cooks. However, understanding how the Instant Pot is able to build and maintain pressure is important, especially the role of the valve.

How Does Pressure Cooking Work?

Pressure cooking works by trapping steam inside a sealed pot, allowing the pressure to rise above normal atmospheric pressure. At higher pressures, the boiling point of water increases substantially.

Under normal atmospheric pressure at sea level, water boils at 212°F (100°C). But under high pressure of 10-12 psi, the boiling point of water can reach around 250°F (121°C). This higher temperature cooks food much more quickly.

The Instant Pot is able to reach these high pressures by:

– Heating the liquid inside the pot using the electric heating element
– Tightly sealing the pot with a locking lid to prevent steam from escaping
– Controlling the release of steam and pressure with a pressure release valve

The valve plays a critical role in building up pressure, maintaining it at the target level, and then releasing pressure at the end of cooking.

The Instant Pot Valve

The Instant Pot has a steam release valve on the lid to control the pressure within the pot. This valve has two positions – Sealing and Venting. Understanding these positions is key to learning the valve’s role in pressure cooking.

Sealing Position

When the valve is rotated into the Sealing position, it closes the opening on the lid and does not allow steam to escape from the Instant Pot. This enables pressure to build up inside the pot.

*Instant Pot valve rotated to Sealing position*

In the Sealing position, the silicone seal plugs the opening tightly so that no steam or liquid can escape. This creates a completely sealed environment necessary for pressure cooking.

As the Instant Pot heats up, the liquid inside forms steam which has nowhere to go thanks to the sealed lid. The steam builds up and pressurizes the inner pot.

The valve remains sealed throughout the entire pressure cooking time. This maintains the high pressure level within the target range of 10-12 psi needed to achieve the higher cooking temperatures.

Venting Position

When the valve is rotated into the Venting position, it aligns the opening on the lid with a channel that lets steam escape from the Instant Pot. This releases pressure from inside the pot.

*Instant Pot valve rotated to Venting position*

In the Venting position, the opening connects to an outlet that allows steam to release. The silicone seal no longer plugs the opening.

At the end of pressure cooking, the valve must be switched to the Venting position to release steam and lower the internal pressure back down to normal atmospheric levels.

The valve is also placed in Venting mode before opening the lid, to prevent a dangerous rush of steam from escaping.

Summary of Valve Positions

Position Opening Condition Purpose
Sealing Closed by silicone seal Build up and maintain pressure
Venting Open to steam outlet Release pressure and steam

Using the Instant Pot Valve

Understanding how to use the Instant Pot’s valve in its Sealing and Venting positions is critical for successful pressure cooking. Here are some key steps:

Before Pressure Cooking

1. Add food and liquid to Instant Pot inner pot.

2. Secure lid and rotate valve to Sealing position.

3. Select cooking program and pressure level on control panel.

4. Instant Pot will start heating up, valve remains sealed to build pressure.

During Pressure Cooking

– Keep valve in Sealing position entire time to maintain high pressure.

After Pressure Cooking

1. Allow Instant Pot to naturally release pressure for 10-15 minutes.

2. After natural release time, turn valve to Venting to manual release remaining pressure.

3. When float valve drops, pressure has been fully released.

4. Open lid carefully.

5. Remove food.

Key Tips

– Never try to open lid when valve is in Sealing position or float valve is still up.

– Vent steam away from you to prevent burns.

– Do not leave Instant Pot unattended when valve is Venting.

– Always make sure valve is Sealed before starting new cooking cycles.

Troubleshooting Valve Problems

While the Instant Pot valve is generally reliable, issues can sometimes arise. Here are solutions to some common valve problems:

Pot Not Coming to Pressure

– **Valve in Venting position** – Make sure silicone seal is fully seated in Sealing position.

– **Debris blocking valve** – Check for food debris stuck around silicone seal and clean thoroughly.

– **Damaged seal** – Seal may need to be replaced if cracked or worn out.

Steam Leaking from Valve in Sealing Position

– **Seal not fully locked** – Rotate valve past Sealing marker to ensure it is fully closed.

– **Seal needs replacement** – Normal wear and tear causes seal to lose elasticity over time. Replace seal.

– **Damaged valve** – If steam leaks from other areas, the whole valve may need replacing.

Unable to Switch Valve to Venting

– **Stuck from mineral deposits** – Clean valve with vinegar to remove limescale buildup.

– **Obstructed channel** – Check steam outlet for debris blocking the vent channel.

– **Mechanical issues** – Gear that turns valve may be stripped and require repair.

Replacing Instant Pot Valve and Seals

The Instant Pot silicone steam release valve seal will need periodic replacing, about every 6-12 months with regular use. Here are instructions to replace the seal:

Materials Needed

– New valve silicone seal, designed for your Instant Pot model
– Q-tips or cleaning brush
– Distilled white vinegar


1. Remove old seal from valve – Work it off gently using fingers. Q-tips can help clean grooves.

2. Clean valve and lid rim – Use vinegar and brush to remove any mineral deposits.

3. Install new seal – Press it into the valve channel firmly all around. Ensure it is fully seated.

4. Test new seal – Rotate valve to Sealing position and do a water test to check for leaks.

The entire valve can also be replaced if the old one is damaged or excessively limescaled. Refer to the Instant Pot manual for complete valve replacement instructions specific to your model.


The Instant Pot uses an adjustable steam release valve that is vital for managing pressure during cooking. This valve must be in the Sealing position for building and maintaining pressure. At the end of cooking, it should be moved to the Venting position to release pressure safely before opening the lid.

Following proper procedures for using the valve and replacing seals regularly will ensure safe and satisfactory pressure cooking results. With some care and maintenance, the valve will function reliably for many years of service. Understanding its working and using it correctly will provide many happy, speedy meals from your Instant Pot!