Why do some boiled eggs easily come out of the shell and others seem to fuse to the shell?

Question

Why do some boiled eggs easily come out of the shell and others seem to fuse to the shell?

In: 1895

Answer 1

Americas Test Kitchen on NPR solved this with science. Age or any other variable does not matter. Chill boiled aggs in ice cold water for said minutes. It has something to do with the proteins in the thin layer under under the shell. Try it. Works 99% of the time.