After the electric pressure cooker is electrified, the water in the cooker is boiled by the heating plate, and the boiling water continuously outputs steam, and the steam is kept in the inner cooker by the lid. After a period of time, when the steam in the inner pot is sufficient and reaches a certain pressure, the heating system will change from main heating to auxiliary heating, that is, the pressure maintaining state. Usage: How to cook ingredients is to heat the pot by steam. You just need to add a small amount of water and ingredients to the pot, and those ingredients will be cooked. At the same time, you can use another method; After adding a little water to the pot, put the ingredients into the bowl, and then put the bowl into the pot. At this time, the ingredients are mainly cooked by steam heating. Attention; This method can't put too much water in the pot, otherwise the boiling water will string into the ingredients, and the amount of water just needs to level the bottom of the pot.