How Popcorn Kernels Pop

Popcorn kernels pop due to the unique structure of the kernel, which includes a hard outer husk and a small amount of water within. When heated, the water turns to steam, creating pressure until the kernel can no longer contain it, leading to an explosive pop that transforms the kernel into the fluffy snack. This process produces various shapes as the soft endosperm rapidly cools and solidifies upon contact with the air. Notably, the specific type of corn used for popcorn differs from other types, as only this variety has the right moisture level and hard shell to pop effectively.