Can breast milk be kept at 40 degrees for five hours?

Breast milk can only be stored for 2-3 hours at 40 ° C, not 5 hours. Breast milk is rich in protein, fat and minerals, which is a good environment for bacterial culture. The temperature of 40 ° C can help bacteria reproduce faster, so if you want to store it for a long time, you need to put it in the refrigerator for frozen storage. It can be stored for about a week.