Removing hard-boiled egg shells immediately after cooking
Making hard-boiled eggs is fraught with complications due to the ease with which they can be under or overcooked. Plus, as soon as you think they're done, temptation rears its head, and you want to peel the hard-boiled eggs right away. You may or may not have heard of an egg ice bath, but the concept behind this trick is straightforward. Because hard-boiled eggs continue to cook inside their shells, it's critical to place them in an ice bath after they've finished boiling. This method is also supposed to make peeling the eggs easier because it separates the outer egg from the shell.
Though there is some debate about how long one should wait before peeling a hard-boiled egg (not to mention when an egg should be dropped into water), an ice bath is usually the preferred method because it prevents the egg from continuing to cook in its shell.