Popcorn (also called popped corn, popcorns or pop-corn) is a variety of corn kernel which expands and puffs up when heated; the same names also refer to the foodstuff produced by the expansion.

A popcorn kernel’s strong hull contains the seed’s hard, starchy shell endosperm with 14–20% moisture, which turns to steam as the kernel is heated.

Some strains of corn (taxonomized as Zea mays) are cultivated specifically as popping corns. The Zea mays variety everta, a special kind of flint corn, is the most common of these.
it is mainly imported from argentina,south africa,usa etc