Why tap the top of a boiled egg?

You tap the top of a boiled egg to crack the shell and make it easier to peel. Here's why:

* Creates a weak spot: Tapping creates a small crack in the shell, which allows air to get in between the shell and the egg white. This air pocket helps to loosen the shell from the egg.

* Easier peeling: When you peel a boiled egg, you're actually removing the shell from the egg white. By cracking the shell, you create a starting point for peeling, and the air pocket helps to make the process smoother.

Here's how to do it:

1. Gently tap: Use a spoon or the bottom of a cup to gently tap the top of the egg. You don't want to smash the egg, just create a small crack.

2. Roll the egg: Roll the egg on the counter to crack the shell further.

3. Peel with your fingers: Once the shell is cracked, you can peel the egg with your fingers.

Bonus tip: If you're having trouble peeling, try submerging the egg in cold water for a few minutes. This helps to further loosen the shell.