In 1679, the French physicist Denis Papin, better known for his studies on steam, invented the steam digester in an attempt to reduce the cooking time of food.which leads to pressure cooker what we are using today. 

As pressure cooking cooks food faster than conventional cooking methods, it saves energy. Pressure is created by boiling a liquid, such as water or broth, inside the closedpressure cooker. The trapped steam increases the internal pressure and allows the temperature to rise      (Wikipedia)

But in some cases

….So handle with care..

………Every thing should have some limitations and handling strategy as like as men…

            ………………………………… Arul?

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