When the pressure in the pot rises to 4-5 atmospheres, the top cover of the popcorn pot suddenly opens, the gas in the pot expands rapidly, and the pressure drops rapidly, which increases the pressure difference between the inside and outside of the rice grains, resulting in the rapid expansion of high-pressure steam in the rice grains, which instantly explodes the rice grains into popcorn.
Extended data:
During the heating process, the temperature in the pot keeps rising, and the pressure of the gas in the pot also keeps increasing. When the temperature rises to a certain extent, the rice grains will gradually soften and most of the water in the rice grains will turn into steam. Because of the high temperature, the pressure of water vapor is great, which makes the softened rice grains expand. But at this time, the pressure inside and outside the rice grain is balanced, so the rice grain will not explode in the pot.
Corn is used as popcorn because the main components of corn oil in corn are linoleic acid and oleic acid, which are unsaturated fatty acids. Has the function of lowering blood vessel cholesterol. Corn contains an anticancer substance called glutathione. Some surveys show that this is related to the causes of cancer in areas where corn is the staple food.
Baidu encyclopedia-microwave popcorn
Baidu encyclopedia-microwave popcorn