

Corny facts
Why don’t all corn kernels pop ?
Popcorn differs from other types of maize/corn in that it has a thicker pericarp (hull). The pericarp allows pressure from the heated water to build and eventually bursts open. The inside starch becomes gelatinous while being heated; when the pericap bursts, the gelatinized starch spills out and cools, giving it its familiar popcorn shape.