First, how long can eggs be boiled?
1, 3 minutes eggs
The egg white is ripe and tender, and the yolk is just cooked and slightly cooked. "3-minute egg" is a lightly cooked egg, which is the easiest to digest. It takes about 1 hour for 30 minutes to digest.
2, 5 minutes eggs
The egg white is ripe and tender, and the yolk is ripe but not hard. The best condition for eating eggs is that the egg white has solidified, while the yolk is in a semi-solidified or flowing state. "5-point egg" is a half-cooked egg, which takes about 2 hours to digest in the human body; It takes 3 hours 15 minutes for eggs boiled for too long to be digested in human body.
3./kloc-eggs within 0/0 minute
In terms of nutrition, eggs cooked in 10 minutes have the highest digestibility, and there is basically no loss of nutrients.
4. Eggs over 10 minutes
When eggs are boiled in boiling water for more than 10 minutes, a series of chemical changes will occur inside the eggs, which are difficult to be digested. Sulfides may be decomposed due to long-term heating, which is harmful to the health.
Second, the correct way to boil eggs
Put the pot in cold water, slowly raise the temperature, boil and cook for 2 minutes. Soak for 5 minutes after the ceasefire, so that the boiled egg white is tender and the yolk is not old.
If you eat boiled eggs, you'd better cook them tender, that is, cook them for five or six minutes after boiling. At this time, the yolk of the egg has just solidified. When eating eggs in this state, protein has the highest absorption rate.
Eggs are an indispensable part of breakfast for many people, among which boiled eggs have higher nutritional value. How long does it take to cook them? Let's get to know it together!
Third, it is harmful to boil eggs for too long.
When an egg is boiled in boiling water for more than 10 minute, a series of chemical changes will occur inside the egg. Protein structure will become tight, not easy to contact with protein digestive enzymes in gastric juice, so it is difficult to be digested. Protein contains methionine. After heating for a long time, sulfide decomposes and reacts with iron in egg yolk to produce iron sulfide and ferrous sulfide. This is also the reason why the outer layer of egg yolk produces dark green.
Therefore, it is recommended that you do not boil eggs for more than 10 minutes.
Fourth, half-baked eggs are easy to cause diarrhea.
In the process of egg formation, there is not only the problem of salmonella pollution, but also the formation of two harmful substances, anti-enzyme protein and avidin. The former will affect protein's digestion and absorption; The latter can combine with biotin in food, leading to the lack of biotin in human body, resulting in mental fatigue, muscle soreness and other symptoms. Once the eggs are cooked, the above two substances will be destroyed. Therefore, eggs should be cooked at high temperature before eating.