If the air pressure at sea level is about 1 bar, water boils in an ordinary pot at a temperature of 100°C. If the pressure is increased, the water boiling temperature also rises. Precisely this higher temperature shortens the cooking time considerably. With the Demeyere pressure cooker you can cook at 112°C or 118°C and you will only need about 1/3 of the usual cooking time. Using a pressure cooker saves time and energy. Taste, colour, vitamins and minerals are often remain better preserved than in a normal pot.