Basics of Pressure Cooker

A pressure cooker is one of the most commonly used kitchen appliances in our creches. It helps with cooking food faster, saving both time and fuel. However, it also requires proper handling, maintenance, and understanding of its parts to ensure safety and efficiency.

What is a Pressure Cooker?

A pressure cooker is a sealed cooking vessel that uses steam pressure to cook food quickly. When heat is applied, water inside the cooker turns into steam. Since the steam cannot escape, it builds pressure inside the cooker, raising the temperature and allowing food to cook faster and evenly.

Understanding the Parts of a Pressure Cooker

Part	Description	Function
Lid (Cover)	The top part of the cooker that seals the pot tightly.	Prevents steam from escaping and builds pressure inside.
Rubber Gasket (Sealing Ring)	A circular rubber ring fitted inside the lid.	Ensures airtight sealing between the lid and the body to maintain pressure.
Pressure Regulator / Weight Valve / Whistle	A small, removable metal valve placed on the lid’s vent pipe.	Controls steam pressure inside and releases excess steam when required.
Safety Valve	Located on the lid, usually opposite the whistle.	Acts as an emergency release system if pressure exceeds safe levels.
Body (Cooking Pan)	The main container where food and water are placed.	Holds the ingredients for cooking.
Handle	Heat-resistant handles attached to the lid and body.	Helps to hold, lift, and open/close the cooker safely.
Venting Tube / Nozzle	Small pipe through which steam passes to the regulator.	Allows steam to escape and maintain desired pressure.
Lid Locking System	Mechanism that locks the lid securely during cooking.	Prevents accidental opening while under pressure.

Steps for Correct Usage

Before Cooking

Check that all parts (gasket, safety valve, and whistle) are clean and properly fitted.
Ensure the rubber gasket is not cracked or dry. Replace it if worn out.
Check that the safety valve is not blocked.
Add sufficient water for the recipe — cooking without water can be dangerous.
Close and lock the lid properly before placing on heat.

During Cooking

Use medium flame after the first whistle to maintain consistent pressure.
Avoid overfilling the cooker — fill only 2/3rd of its capacity (and 1/2 for foods that foam, like dal or rice).
Do not place your face or hands near the whistle when steam is being released.
Never attempt to open the cooker while it is still under pressure.

After Cooking

Switch off the flame and allow the cooker to cool down naturally.
If releasing pressure manually, use a spatula or cloth — not bare hands.
Once the pressure is fully released (whistle stops and lid moves freely), open carefully, tilting the lid away from you.
Wash and dry all parts after use.

Common Mistakes and How to Avoid Them

Common Mistake	Impact	Correct Practice
Forgetting to add enough water	Food may burn or cooker may get damaged	Always add required water as per recipe
Using a damaged gasket	Steam leakage; food undercooked	Replace gasket immediately
Opening the cooker immediately after turning off gas	Sudden release of steam may cause burns	Wait till pressure releases fully
Cooking on very high flame	Risk of overheating and damage	Use medium flame after first whistle
Ignoring cleaning of vent pipe	Blockage can lead to excess pressure	Clean vent pipe regularly with a pin