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Eating an egg every morning can provide about 7 grams of protein, which is nutritious, delicious and convenient
Recently, a health program stated that if eggs are boiled for more than 10 minutes, the yolk may turn blue, and the blue yolk is poisonous and will increase the risk of cancer after consumption
Why does the yolk turn blue when the egg has been boiled for a long time?
The protein in eggs is rich in cysteine, a sulfur-containing amino acid that generates hydrogen sulfide when heated
As for the claim that it causes cancer, it is not reliable
Therefore, when the yellow of an egg turns green, it will affect its "appearance" at most, and will not affect human health
In addition, many people like to eat "boiled eggs", that is, the eggs are only boiled to the third maturity and the yolk is basically still in a liquid state
So, what exactly can be done to cook "full marks" eggs? This is actually not difficult, just follow the 3 steps below
The first step is to wash the eggs in the pan under cold water; the second step is to cover the pot, turn on the fire, and start counting for 3 minutes after the water is boiled; in the third step, turn off the heat after 3 minutes, do not open the lid, and simmer for 5 minutes.