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

So many wrong answers here. It had nothing to do with the age of the egg, or anything like that. A VERY reliable, although still technically un-scientific large scale test by J Keni gives you the best info. In practical use, I can use his method and I would say greater than 95% of my eggs peel perfectly.

https://www.seriouseats.com/the-secrets-to-peeling-hard-boiled-eggs