Eggs are usually cooked for 5-10 minutes. Wash the eggs before boiling them, otherwise they are a bit dirty. Put into the water and cook until the water boils, cook for 5 minutes, most of the egg white is cooked, the yolk is not yet ripe; cook for 7 minutes, the egg white is ripe, the yolk is ripe for a part of the egg, this time is what we often say sugar Qin egg; cook for 10 minutes the egg white yolk has been ripe, the taste is just right, if you cook too long, it will destroy the nutrients of the egg, and the taste becomes old.