Breastmilk should not be left at room temperature for more than 24 hours in winter, and try not to leave it at room temperature, so as not to affect the quality of breastmilk.
Breastmilk is rich in proteins and fats, but also some bioactive substances, long time storage is not only the problem of protein denaturation. There are also some bioactive substances that are stored at room temperature, which will cause the disappearance of the bioactive substances in breastmilk, which may affect the effectiveness of the breastmilk components and help the child’s immunity.
If conditions permit, you can feed in person. Suckling stimulates the mother’s nipples to produce more milk, rather than pumping the breastmilk and leaving it at room temperature, which can affect its effectiveness.
If personal feeding is not possible and breastmilk needs to be kept for a long time, it is recommended to put it in sterile bottles or glass jars, exist in a freezer below 5 degrees Celsius, and take it out to rewarm it when it is time to eat.