Why did the pressure cooker explode?
Before using the pressure cooker, you must do the following:
① Check whether the air valve is safe and smooth;
2 Expandable foods, such as rice or beans, must be reduced as appropriate;
(3) After cooking, depressurize first and then open the lid;
(4) When cooking liquid food, such as porridge or soup, pay attention to water consumption, and try not to use exhaust method to decompress, otherwise viscous liquid may block the exhaust valve, and the pressure cooker should be removed from the stove and naturally cooled at room temperature;
⑤ Replace the apron regularly, and fasten the lid on the pan after each use to prevent the apron from being pressed for a long time to accelerate deformation. ?
Extended data:
Pressure cooker principle:
The principle of pressure cooker is simple, because the boiling point of water is affected by air pressure. The higher the air pressure, the higher the boiling point. On mountains and plateaus, the air pressure is lower than 1 atmospheric pressure, and water can boil below 100℃. Eggs are not cooked in ordinary pots and pans. When the air pressure is greater than 1 atmospheric pressure, water will boil only when it is higher than 100℃. The pressure cooker commonly used by people is designed by using this principle.
The water in the pressure cooker is closed tightly, so the water vapor generated by water evaporation can't diffuse into the air, and only stays in the pressure cooker, which makes the pressure in the pressure cooker higher than 1 atmospheric pressure, and also makes the water boil above 100℃, thus forming a high-temperature and high-pressure environment in the pressure cooker, and the rice is easy to cook quickly and is quite crisp. Of course, the pressure in the pressure cooker will not be infinite, otherwise it will explode.
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