The difference between popcorn and ordinary corn is mainly concentrated in four aspects, namely, different varieties, different characteristics, different appearance and different taste. If you want to make popcorn at home, don't use ordinary corn directly, but use popcorn specially used for making popcorn. Ordinary corn, also known as corn and corn cob, is native to Central and South America and is divided into sweet corn and waxy corn. It can be eaten after being cooked, and has no special function. The first major difference between popcorn corn and ordinary corn is the variety. The former belongs to the special corn specially used to make popcorn, and the latter is the staple food we eat every day, which has no special function. The second biggest difference between popcorn corn and ordinary corn lies in its different characteristics. The former will explode at high temperature, bursting into popcorn much larger than the original, while the latter does not have this characteristic. Popcorn is mainly used to make popcorn, which has the characteristics of sweet and crisp taste, but it is easy to get wet, and it will lose its crisp taste after getting wet, so the popcorn made should be eaten while it is hot. Ordinary corn tastes soft, waxy and sweet. It's not brittle, but sticky. The fourth difference between popcorn corn and ordinary corn lies in the different taste. The former tastes crunchy, while the latter tastes soft and waxy. Under the condition of high temperature, the expansion of popcorn is very strong, and it can be exploded into popcorn several times larger than the original volume. After expansion, milky white flocs (that is, popcorn) will appear. This kind of corn still has swelling power even if the seeds are broken. When the moisture content of corn kernel is between 13.5% ~ 14%, the puffing effect is the best. Ordinary corn embryo skin is thin, its swelling power is poor, and it is not easy to burst at high temperature. Even if there is, it is only on a small amount of corn particles, and its expansion performance is far less than that of popcorn.