The team behind the forthcoming six-volume, 2,200-page tome Modernist Cuisine show us exactly what happens to a kernel of popcorn when it's...
The team behind the forthcoming six-volume, 2,200-page tome Modernist Cuisine show us exactly what happens to a kernel of popcorn when it's heated—at 6,200 frames per second.
[youtube]http://www.youtube.com/watch?v=6Qhh2rwIeuo
Since a popcorn kernel is about 15 percent water, heat turns that water into steam, creating pressure inside the hard, non-porous hull. Then, at about 135 psi, it explodes and the starchy endosperm unfolds (via the Modernist Cuisine blog).