How is popcorn formed? What is the scientific truth contained in this?

Popcorn must be a favorite snack for many people. We can always see him in our daily life. Popcorn tastes fluffy and sweet, which makes many people, especially children, want to stop. Perhaps for many of us, the impression of popcorn is that after the uncle on the roadside turns on the popcorn machine, it is accompanied by? Bang? A loud and scattered popcorn. So how is popcorn made? In fact, there are two principles for making popcorn, one is to use a popcorn machine, and the other is to use frying. The raw materials used are also different, both corn and rice can be used. Generally, it is easier to use corn, so you can fry it. But if you use rice, you must use a popcorn machine.

First, popcorn made of corn When using popcorn made of corn, you can fry it or use a popcorn machine, but you must use dried corn kernels. This is because this kind of corn has a certain amount of water inside and a hard shell outside. Due to the effect of frying, the water inside the corn kernels will turn into steam and gradually expand. Because the appearance is hard, water vapor can't escape, so it will make corn grains swell. When the internal pressure expands to the extent that the shell can't bear it, the internal starch will be sprayed out to form a fluffy structure, which forms the popcorn that we first learned about.

Second, the popcorn made of rice should be paid attention to when making popcorn with rice, and only the popcorn machine can be used. Because there is no water in the rice, it won't swell. When using the popcorn machine, the machine must be sealed. And keep rotating heating, so that it is heated evenly. During the heating process, the internal temperature rises and the pressure increases. When the pressure and temperature reach a certain level, the internal pressure will be released instantly. Because of the huge pressure difference, the rice will expand inside and spread out. This is the principle of the formation of rice fragrance.

The above is the explanation about the formation principle of popcorn, and you are welcome to add it.