Drinking hot milk helps sleep, so many people will have the habit of heating milk. In fact, heating milk is not advisable. What's wrong with boiling and heating milk?
At present, all the milk on the market has been heated and sterilized. If boiling is for disinfection, it is not necessary at all. In addition, milk for disinfection temperature requirements is not high, 70 ℃ for 3 minutes, 60 ℃ for 6 minutes. Generally speaking, ultra-high temperature sterilized milk can be directly drunk. For fresh-keeping milk taken out from the refrigerator, as long as it is cool, it can be heated to a suitable temperature for drinking.
If the milk is boiled and the temperature reaches 100 ℃, the lactose in the milk may appear coking phenomenon and caramel, which will affect the taste and nutrition of milk. In addition, when the milk is boiled, the calcium will precipitate with phosphoric acid, which will also reduce the nutritional value of milk.
The best way to warm the milk is to separate the water and heat it. Put the fresh milk into the hot water for about 5 minutes. If you choose to use the milk pot to boil milk, it is best not to leave, because the milk is generally heated to a certain temperature, it is very easy to overflow.
What needs to be reminded is that in order to save time, many people choose to use microwave oven to heat. This heating method will lead to uneven temperature, and the bagged and boxed milk containing polyethylene is not suitable for microwave heating, otherwise it will be decomposed by heat. Therefore, read the instructions on the package before heating. In addition, the setting time should not be too long, 250 ml of heating 1 minute can, otherwise it will damage the nutrition.