What is popcorn? Corn?

Corn used for popcorn can be divided into two types, popcorn and dried corn.

Popcorn is generally made of popcorn, which has a strong puffing ability. When heated, the seeds burst, forming large popcorn.

Ordinary dry corn can also be used as popcorn, which is heated in containers such as wok and pressure cooker, and the popcorn pops at high temperature. The popcorn effect of professional popcorn machine is better.

Popcorn made from popcorn and dried corn tastes different. Popcorn made of popcorn has more rice flowers and a more crisp taste. Popcorn made from ordinary dry corn has less flowers and is more and more difficult to chew.

The principle of popcorn

Put a proper amount of corn (or rice) into the popcorn pot, seal the lid, and then put the popcorn pot on the stove and rotate it constantly to make it evenly heated, so as to make delicious popcorn.

This is because in the process of heating, the temperature in the pot keeps rising and the pressure of the gas in the pot 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. 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.