Generally speaking, milk should be boiled for 2~3 minutes after boiling. Generally, a cup of milk of about 250 ml can be boiled at a high temperature of 70℃ with a gas stove for about 3 minutes.
It is best not to add sugar in the process of boiling milk, because lysine and fructose in milk will generate a toxic substance fructose lysine under the action of high temperature, which is not conducive to human absorption. Drinking this milk may also cause gastrointestinal discomfort, vomiting, diarrhea and other symptoms.
The value of drinking milk
The ratio of protein to calories in milk is reasonable, which can ensure that drinkers do not consume pure calories. The calcium content in milk is easy to absorb, and the collocation of phosphorus, potassium, magnesium and other substances is also very reasonable. The fat contained in milk has a low melting point and small particles, which are easily digested and absorbed by the human body, and the digestibility reaches 97%.
The most abundant carbohydrate in milk is lactose, which makes calcium easily absorbed. Milk contains high-quality protein including casein and a small amount of whey protein, and its biological value is 85. Milk contains all the amino acids needed for human growth and development, which is incomparable to other foods.
People's Daily Online-High-nutrition milk is four times more valuable to drink. People's Daily Online-Never add sugar when cooking milk.