In fact, the main material of popcorn is generally corn or rice. In the case of popcorn with various kinds of rice, its principle is mainly to heat the rice grains and then release them instantly.
In this way, when its heat meets an acid event, it will form the shape of popcorn, so popcorn is the main snack when people are young.
So now many people use other microwave ovens to pop popcorn, and the final popcorn is very different from the hourly pressure popcorn.
This is mainly because the materials have changed, because the newly cultivated corn is very easy to make popcorn, which is very different from before.
It is said that the principle of making popcorn by millet is exactly the same.