If you choose to microwave heating, be sure to set the fire, time parameters in advance, it is recommended to use a medium or small fire, heating in two to three times, that is, each time after the heating is taken out, shaking evenly, and then heating, until the milk is warm and not hot.

On the question of whether microwaving milk will destroy the nutrients in the milk, the key lies in the length of the heating time. Because the microwave oven heating speed is extremely fast, and the temperature to preserve the nutrients of milk can not be too high.

According to relevant information, the microwave oven sterilization ability mainly from the thermal effect and biological effect. Thermal effect can make the bacterial cell protein heat denaturation coagulation, resulting in bacterial death. If the microwave oven to heat the milk for too long, will make the milk protein by high temperature, by the sol state into a gel state, resulting in the appearance of deposits, affecting the quality of dairy products.

The longer the milk is heated and the higher the temperature, the more serious the loss of nutrients in it, mainly vitamins, of which vitamin C is lost the most, followed by lactose.

Drinking a cup of about 250 ml of milk, if heated with a gas stove, usually 70 ℃ high temperature cooking 3 minutes, 60 ℃ cooking 6 minutes can be. Then with a microwave, 1 minute or so will do. But be aware that heating with a microwave can have uneven temperatures, so stir it before you drink it so you don't get burned.

Professionals also made it clear that putting bagged milk directly into a microwave oven will have an adverse effect on human health. If the packaging material does not indicate "microwaveable" words, it is not appropriate to put directly into the microwave oven heating. You must first pour the milk into a microwave-safe container and then heat it in the microwave.

Advantages and disadvantages of common methods of heating milk:

Cooking in a pot.

Many people like to use this method, but if you are not careful to boil and flutter the pot, or in the bottom and walls of the pot to paste a layer, resulting in nutritional losses. Here to teach you a method - "boil - open": while cooking while observing changes in the milk, to appear the first "bubble" immediately turn off the heat; cook the The process has been stirring, the action should be gentle, do not stir up foam; the fire can not be too big, medium heat can be.

This method is relatively troublesome to operate, and after heating the milk temperature is higher, can not drink directly, the advantage is that it can effectively kill bacteria, especially suitable for heating the one-time leftover milk did not finish drinking.

Water heating.

This is a gentle and slow heating method, do not need to open the milk package, that is, with the package directly into the container, pour 80 ℃ ~ 100 ℃ of hot water, from time to time to shake a little bit, to be the temperature of the water down to the right temperature, the milk is also warm, you can drink directly. This heating method is relatively slow, but safe and convenient, can maximize the retention of the nutrients, especially recommended.

It should be noted that if you are not afraid of cold, unopened milk can be drunk directly. Because of the standardized production of milk through the dairy enterprises, have gone through a rigorous sterilization process, its tight packaging to ensure that the product in the shelf life of microbiological indicators, nutritional indicators and sensory indicators in line with the relevant national standards.

But if you don't drink the milk all at once, you'll have to cook it next time you drink it. Because the milk after opening mixed with bacterial air, and sealing is difficult, even in the refrigerator will be contaminated with stray bacteria, direct drinking may bring diarrhea and other problems.

ReferencesPeople's Daily News-How to heat milk in the microwave? People's Daily - You heat milk the right way