1, 3 minutes eggs
Egg whites are cooked and soft, yolks are just about to be cooked, slightly loose. The "3-minute egg" is a slightly cooked egg, the easiest to digest, takes about 1 hour and 30 minutes to digest.
2, 5-minute eggs
Egg whites are cooked and tender, yolks are cooked but not hard. The best state to eat eggs is when the whites are already solidified and the yolks are in a semi-solidified or fluid state. The "5-minute egg" is a half-cooked egg, digested in the human body for about 2 hours; boiled eggs too long, digested in the human body to 3 hours and 15 minutes.
3, within 10 minutes of the egg
In terms of nutrition, boiled eggs within 10 minutes, the highest digestibility, nutrients basically no loss.
4, more than 10 minutes of eggs
Eggs cooked in boiling water for more than 10 minutes, the eggs will undergo a series of chemical changes within the egg, it is difficult to be digested, but also due to prolonged heating and decomposition of sulfide, harmful to the body.
The correct way to poach eggs
Cold water in the pot, slow heat to warm up, boil and cook for 2 minutes on light heat. Cease fire and then soak for 5 minutes, so that the boiled egg whites are tender, the yolk is solidified and not old. If you eat boiled eggs, eggs are best cooked tender, that is, open the pot and then cook for five or six minutes on it, at this time, the yolk of the egg just solidified, consume this state of the egg, the human body to the highest rate of protein absorption.
Boiling eggs for too long is harmful
Eggs cooked in boiling water, more than 10 minutes, the eggs will be a series of internal chemical changes. The protein structure will become tight, not easy to contact with the protein-digesting enzymes in the gastric juice, so it is difficult to be digested. The proteins contain methionine, which, when heated for a long time, breaks down into sulfides that react with the iron in the yolk to form iron sulfide and ferrous sulfide. This is why the outer layer of the egg yolk produces a dark green color. Therefore, it is recommended that you should not boil eggs for more than 10 minutes.