The change of taste. Electric pressure cooker's self-selecting pressure preservation function, mainly for the change of taste companies have designed time, but taking into account the different preferences of each person, so it is designed to self-select the pressure function key. Pressure cooker is also called pressure cooker, pressure cooker, is a kind of kitchen cookware. Pressure cooker applies pressure to water through the physical phenomenon that the boiling point of a liquid will be raised under higher air pressure, so that the water can reach a higher temperature without boiling, in order to speed up the efficiency of stewing food. It can be used to heat the food being cooked to over 100°C. At high altitudes, the use of a pressure cooker avoids the problem of water having a lower boiling point and not being able to cook the food easily.