Organic Popping Corn Popcorn can also be used as a topping for dishes such as salads, granola, and more. It adds a crunchy texture and a tasty flavour to any dish. Popcorn is a variety of corn kernel which expands and puffs up when heated; the same names are also used to refer to the foodstuff produced by the expansion. Popcorn is a type of corn that expands from the kernel and puffs up when heated. Heat causes pressure to build inside the kernel, and a small explosion (or "pop") is the end result. Some strains of corn are cultivated specifically as popping corn. Organic popcorn, also called popping corn, is a type of grain that is known for its ability to pop when heated. It is made of large, unpopped golden kernels that have a firm seed, a moisture-sealed shell, and a dense, starchy interior.