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.

The sealing ring of a new pot that has not been used has high elasticity. Please add a small amount of food oil to the top and bottom of the pot as shown by the arrow in the figure to facilitate the initial opening and closing. The lid, body and handle of the pot shall be cleaned before each use to facilitate the closing of the lid. When putting food, food and water shall not exceed four fifths of the pot capacity, and water or soup shall not be less than 400ml.