Pressure cooker, also called pressure cooker, is a kind of kitchen utensil. The boiling point of the liquid in the pressure cooker at a higher pressure will enhance this physical phenomenon, so that the water can reach a higher temperature without boiling, so as to speed up the efficiency of stewing food. It can be used to heat the cooked food to more than 100 ℃. In high altitude areas, the use of pressure cooker can avoid the problem of reducing the boiling point of water and making it difficult to cook food.

Pressure control safety device: it can automatically cut off power in case of exceeding the set pressure during use. Pressure relief safety device: when the pressure in the boiler exceeds the safety value due to the failure of the pressure limiting safety device, the pressure relief mechanism will work to automatically exhaust and relieve the pressure around the boiler to ensure that no accident of boiler explosion will occur. Pressure limiting safety device: when the pressure in the boiler increases to the upper limit, the pressure limiting vent valve will automatically exhaust and limit the pressure.