Breastmilk heated at 100 degrees across water is not acceptable. Breastmilk cannot be heated at 100 degrees under water, it will reduce the nutritional value of breastmilk, which will affect your baby’s nutritional supply. Breast milk contains fat, protein, vitamins and other nutrients, which is the best nutrition for babies. Breastmilk should not be heated directly with water at 100 degrees Celsius, even if it is heated through water, because in this high temperature environment, it may lead to the denaturation of fats and proteins and vitamins, which will reduce the nutritional value of breastmilk, thus affecting the nutritional supply of the baby. For refrigerated or frozen breastmilk, you can use a special warm milk cooker, adjusted to the temperature of 40-50 directly after heating, which can retain the nutrients of breastmilk, the growth and development of the baby is beneficial.