Milk can be properly heated, but the heating time should not be too long and the temperature should not be too high. Milk as a nutritious drink, rich in calcium, protein, vitamins and minerals and other nutrients, appropriate heating can improve the taste, if raw cow’s milk, it must be heated and boiled to avoid gastrointestinal infection symptoms. Ordinary milk can be heated to 40-50 degrees. You can pour the milk into a ceramic or glass container, put into the microwave oven to heat for about 20 seconds, with the packaging of the milk are prohibited to put directly into the microwave oven to heat, because the milk packaging usually belongs to the paper class, do not withstand high temperatures, easy to ignite or deformation by heat.