Whether or not the freshly expressed breastmilk needs to be heated depends on the outside temperature; if the breastmilk gets cold quickly, it needs to be heated. If the outside temperature is high, the just-expressed breastmilk will not be cold soon, there is no need to heat, if the outside world is in a cold environment, it takes a certain amount of time to express breastmilk, in this time breastmilk may be cold, the need for a water bath to 36-38 ℃, so as not to cold breastmilk affects the baby’s gastrointestinal tract. Breast milk belongs to the baby’s most natural food, which contains a variety of trace elements, proteins, fats, etc., nutritional value is very high. Generally, direct breastfeeding by the mother is better and can also enhance parent-child relationship. But if you can’t breastfeed directly, you can also express breast milk to feed. It is best to keep the temperature of breastfeeding for babies at 36-38 degrees Celsius, which is good for the baby’s digestion. So if the expressed breastmilk is at the right temperature, you can give it to your baby directly. If it is cold, you need to warm it up in a water bath to the right temperature. Breastmilk should not be heated to too high a temperature so as not to affect the nutrients in it.