1, cooking. It is a common means in cooking, but according to the content of cooking, there are also many skills to master.

Soak the eggs in cold water first, and then cook them in hot water, so that the eggshell will not break. In addition, the egg skin is easy to peel off.

Second, steaming eggs is the process of putting eggs into a steamer and using steam to make them mature.

1, steamed. Is a cooking method, that is, put the raw materials to be steamed into a steamer and steam them to make them mature.

2, steaming. It uses steam as heat transfer medium to cook raw materials, which is different from other technologies in that oil, water and fire are used as heat transfer media.

Third, the difference between boiled eggs and steamed eggs:

1, boiled eggs:

① Boiling eggs is simple. Just cook the eggs in a cold water pot until they are cooked.

Boiling eggs takes longer than steaming eggs, and it takes seven minutes to boil eggs.

③ The nutritional value of boiled eggs is high, and the nutritional absorption rate is 100%.

4, boiled eggs are easy to stick to the skin, not easy to peel. Just boiled eggs must be washed with cold water, so that the skin is easy to peel through the principle of heat expansion and cold contraction.

2. Steamed eggs:

① The time for steaming eggs is shorter than that for boiling eggs, and it takes five minutes to steam eggs.

② The heat of steamed eggs is higher than that of boiled eggs, because it is exothermic to liquefy water with steam at 100℃.

(3) Steamed eggs can make protein loose, easy to digest and absorb, and taste better than boiled eggs.

4. The skin of steamed eggs is not easy to stick and easy to peel off.

Extended data

(1) Boiled eggs are one of the most common ways to eat eggs. The nutritional value of boiled eggs is very high, and the nutritional absorption rate is 100%.

(2) However, although boiled eggs are rich in nutrition, excessive consumption will lead to indigestion, so it is not advisable to eat too many boiled eggs, and it is generally advisable to eat no more than 1 egg a day. If boiled eggs are cooked properly, the nutritional absorption rate of boiled eggs can reach 100%, thus becoming the first choice for breakfast or nutritious meals.

(3) If the eggs are boiled in boiling water for more than 10 minutes, a series of chemical changes will occur inside. The structure of protein becomes more compact, and it is not easy to contact with protein digestive enzymes in gastric juice, so it is more difficult to digest. Protein in eggs contains more methionine. After a long period of heating, it will decompose into sulfide, which will react with the iron in the egg yolk to generate iron sulfide which is not easily absorbed by the human body, resulting in more nutritional losses. ?

(4) Uncooked eggs are more harmful. Raw eggs are not only contaminated by salmonella, but also 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.

References:

Baidu encyclopedia-boiled eggs