It was an airtight cooker that was using the steam pressure principle. He invented steam digester in 1679, in order to reduce the cooking time. When pressure cooker was invented?Ī French physicist named, Denis Papin was famous for his studies on steam. That’s the basic principle of pressure cookers.
This will continue until it reaches the trigger pressure of the safety valves, about double the psi at sea level. So when you heat the cooker, the pressure inside the cooker is increased and the temperature inside the cooker is also increased. If we will increase Pressure then Temperature inside the closed pot will also be increased and vice versa.
In the case of pressure cookers, we consider this equation as P = T (because pressure cooker is a sealed pot) which means, Pressure is directly proportional to Temperature. This equation is applied for closed systems. As we all know the Ideal Gas Law and its equation is PV = nRT. Pressure cooking normally takes less cooking time than normal cooking methods.Ī Pressure cooker works on steam pressure. Pressure cooking is a process of cooking food at high pressure, employing water within a sealed pot, called a pressure cooker. All the ingredients are placed here in this part. In this part of the pressure cooker the logic and heating reside. In this part of the electric pressure cooker, valves and most of the safety systems resides. But there are three major parts of pressure cookers which are discussed below: If we talk about parts of pressure cookers then there are many small parts of pressure cookers that help each other during the cooker process. This principle is explained below in detail. It works on the principle of steam pressure. It can cook 30% faster than normal cooking methods, therefore it is widely used in the kitchen, all over the world. A sealed pot, with a lot of steam inside the pot, which generates high temperature inside and helps to cook the food very fast. 12.2.3 3- Overcooking is possible What is a pressure cooker?īefore going towards how does pressure cooker works, we should understand what pressure cooker actually is?Ī pressure is a simple sealed pot with a very tight sealed lid and safety valves.
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