1, pressure cooker cooking takes 15 minutes to cook. Cooking in a pressure cooker requires less water than rice. Turn off the fire after about 10 minutes, and turn off the fire after 5 minutes of high pressure. Wait until the rice is cooked for 5 minutes, and then open the cover when the pressure valve is out of gas.

2. The pressure cooker exerts pressure on the water through the physical phenomenon that the boiling point of the liquid will rise under higher air pressure, so that the water can reach a higher temperature without boiling, thus accelerating the efficiency of stewing food. It can be used to heat cooked food to above 100℃. At high altitude, the pressure cooker can avoid the problem that the boiling point of water decreases and it is difficult to cook food.