Prestige hi dome aluminium pressure cooker 6lunder normal conditions water boils at a temperature of 100 c 212 f this temperature is dictated by atmospheric pressure and cannot increase no matter how long boiling continues the cook control on your prestige cooker increases the pressure inside the cooker which in turn raises the temperature at which the liquid boils the result is faster cooking time because of the higher temperature obtained and at the same time the steam is forced throu