A pressure cooker is a type of pot with a very tight lid.
As the liquid in the cooker gets hot, pressure rises. Higher pressure results in a higher boiling point. Pressure cookers allow cooking at higher temperatures, which allows faster cooking.
Images for kids
A stovetop pressure cooker
A six-quart pressure cooker manufactured by Archibald Kenrick & Sons in England, circa 1890
Super cocotte décor SEB, 1973. Aluminium body, polyamide lacquered with an embossed aluminium lid and a stainless steel stirrup. On display at the Musée gallo-romain de Fourvière, Lyon. 18/10.
Stove top pressure cooker with battery operated timer