The pressure cooker is a sealed cooking vessel designed to cook food quickly by using steam pressure generated within a closed chamber. It typically consists of a heavy-duty cooking pot, airtight locking lid, pressure regulator valve, safety valve, sealing gasket, and heat-resistant handles. Constructed from stainless steel or aluminum, the pressure cooker is designed to withstand high temperatures and pressures while improving cooking efficiency and reducing energy consumption.

In operation, food and the required amount of liquid are placed inside the cooker, and the lid is securely locked. As heat is applied, the liquid produces steam that becomes trapped inside the sealed vessel, increasing the internal pressure and raising the boiling point of water. This higher temperature cooks food faster than conventional methods while retaining moisture and flavor. The pressure regulator maintains the desired pressure level, and once cooking is complete, the pressure is safely released before opening the lid. Regular inspection of the gasket and safety valves ensures safe and efficient operation.