Boiling water is (effectively) never hotter than 100c, so the inside of the egg never gets hott enough to turn water into steam. When the egg touches the bottom for too long it gets heat conducted straight from the metal of the pot allowing some of the water in the egg to boil and burst the shell.
Why do eggs burst when boiling?
The older a raw egg gets, the more air becomes trapped in an air chamber located at the wide end of the egg. As others have pointed out, when you cook an egg in boiling water, the air will expand too quickly and will burst the shell — the same way a balloon will pop with too much air.
How do you keep eggs from exploding when boiling?
If you’re about to place uncooked eggs in a pot of boiling water, stop what you’re doing immediately. Making hard-boiled eggs should always begin with cool water. Bringing the water and eggs up in temperature together helps promote even cooking and prevent cracking.
Can you eat an egg that exploded while boiling?
Cracking During Boiling
Eggs that crack during boiling may not look as nice as ones that don’t but are still safe to eat. If you are not planning to eat the cracked hard-boiled egg, store it in the refrigerator immediately after cooking. Like all hard-boiled eggs, one with a crack should be eaten within one week.
Do old eggs crack when boiled?
Starting with boiling water offers more control over timing but this may cook the whites into a rubbery state. And it has another disadvantage: The egg is more likely to crack because the air in the egg has less time to escape as the egg heats up.
Can you cook a cracked egg in boiling water?
If eggs crack, break them into a clean container, cover it tightly, keep refrigerated and use within two days. … About the only thing you can’t do with those cracked eggs is to boil them. Casseroles, omelets, scrambled eggs, quiche and frittatas are all great options.
How do you tell if a baby chick has died in the egg?
You may hear them tapping inside (if they are ready to start hatching) if you hold the large end of the egg up to your ear. I’ve found that if a chick dies a clear space develops under the air cell and the shadow of the chick looks blotchy and lumpy. So if they look very full then hopefully they are still alive.