Electric pressure cookers are generally equipped with a special exhaust valve. \x0d\ After the meal is done, if you are in a hurry to open the lid, you must first exhaust before you can open the lid until after the safety valve is down. \x0d\\correct way to exhaust is to rotate the exhaust valve 90 degrees, then you will hear the sound of exhaust, and of course, you will see the exhaust. \x0d\\ After exhausting, the safety valve will fall down automatically, and then you can open the lid of the pot. \x0d\ To speed up the exhaust, use chopsticks to hold the exhaust valve and lift it upwards.