Pressure cooking - Wikipedia
https://en.wikipedia.org/wiki/Pressure_cooking
Pressure cooking is the process of cooking food under high pressure steam, employing water or a water-based cooking liquid, in a sealed vessel known as a pressure cooker.High pressure limits boiling, and permits cooking temperatures well above 100 °C (212 °F) to be reached.. The pressure cooker was invented in the seventeenth century by the physicist Denis Papin, and works by expelling air ...
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