The reason why the electric pressure cooker has no air and pressure may be that the electric pressure cooker has no air and pressure due to air leakage around it, or that the electric pressure cooker has no air and pressure due to air leakage from the float and safety eye, or that the electric pressure cooker has no air and pressure due to air leakage from the heavy hammer and the lid.

Electric pressure cooker is an upgraded product of traditional pressure cooker and rice cooker, which combines the advantages of pressure cooker and rice cooker, completely solves the safety problem of pressure cooker, and relieves the safety hidden trouble that ordinary pressure cookers have plagued consumers for many years. Its thermal efficiency is over 80%, saving time and electricity. The working principle of electric pressure cooker is that the boiling point of water rises with the increase of pressure, that is to say, the temperature when water boils under normal pressure is higher than 100℃, so the cooking time will be shortened when the temperature when water boils in the cooker is higher than 100℃.

The possible performance values of electric pressure cooker products are: safe and energy-saving, delicious and healthy, fashionable and high-grade, automatic, convenient and durable. According to the operation mode of electric pressure cooker, it can be divided into traditional mechanical operation and new microcomputer operation.

This answer is applicable to most brands such as Midea, Haier and Gree.