Is it okay to boil milk at high temperature for a long time?

　　Is it okay to boil milk at high temperature for a long time?

　　Avoid boiling milk at high temperatures for a long time. When milk is heated, the colloidal protein particles in the milk will change and dehydrate at 60 to 62 degrees Celsius, turning into a gel state, followed by precipitation.

　　Drinking a glass of milk before going to bed can effectively relieve fatigue. It can fully improve the quality of sleep, but you should also pay attention to eating biscuits and other foods when drinking.

　　It is not advisable to use copper utensils to heat milk. Copper can accelerate the destruction of vitamins. Avoid exposing milk to sunlight, as the B vitamins in fresh milk are quickly destroyed when exposed to sunlight. ； Do not drink frozen milk. After the milk is frozen, the fat and protein in the milk are separated, the taste is obviously lighter, and the nutrients are not easily absorbed.