New pressure cooker before using the treatment needs to be soaked in water for three hours, and then wash the pressure cooker with detergent, and then check whether the air outlet holes are tightly fitted, can be used, pressure cooker is also known as the pressure cooker, pressure cooker, is a kind of kitchen pots and pans. Pressure cooker through the liquid at higher air pressure boiling point will be raised this physical phenomenon, the pressure on the water, so that the water can reach a higher temperature without boiling, in order to speed up the efficiency of the stewed food, with which you can be steamed food heated to more than 100 ℃.