Pneumatic opening of electric pressure cooker

Before opening the lid, it is necessary to make sure that there is no air pressure in the pot, and then remove the pressure limiting valve to ensure that there is no air pressure in the pot before opening the lid, or you can forcibly use cold water to cool the pot to depressurize it, and then open the lid when there is no gas from the pot. On the market, pressure cookers are all provided with safety protection by opening and closing the cover. For example, when there is air pressure in the cooker, the safety rod is in the rising stage. At this time, the lid cannot be opened according to the normal use method. When there is no air pressure in the cooker, the safety rod can be lowered to open the lid safely. When exhausting, keep your hands or face away from the exhaust port to avoid scalding.