Why Jacques Pépin Spins Hard-Boiled Eggs Before Using Them - Chowhound

You can easily test this experiment yourself the next time you're making a batch of boiled eggs. First, grab a raw egg and twist it on the countertop. It should rotate in a very wobbly fashion, if it does at all. Compare that to a boiled egg, which, when cooked through, spins quickly and steadily. The physics behind this are fairly simple; when you spin a raw egg, the centrifugal force causes the liquid white and…