I have a way to prevent boiled eggs from breaking.

(1) Crack prevention method for boiled eggs. Put the eggs in a cold water pot and cook them slowly with slow fire, so that they won't crack. If boiled in hot water, the eggs should be soaked in cold water for a while before being put into the pot, or washed with tap water. Even if it is cooked over high fire, the eggs will not crack.

(2) Clever boiled eggs. When cooking eggs, put some salt in the pot first. Salt can solidify protein and prevent protein from flowing out. If the eggshell is broken, you can add a little vinegar immediately to prevent protein from flowing out.

Just try it. Experience is the mother of wisdom. It doesn't matter.