Do Eggs Float When Done Boiling?
It depends on the freshness of the eggs. Fresh eggs have denser shells, and they will sink to the bottom of the pot when boiled. As the egg ages, gases build up inside the shell, causing it to become less dense, and the egg will begin to float at varying angles. So, if an egg is floating when boiled, it may indicate that it is not quite fresh but is still safe to eat if boiled properly.