Can breast milk stored at different times be heated together?

Patient's question:

Can I mix breast milk refrigerated at different times and then heat it up to feed the baby?

Doctor's answer:

Of course, as long as the milk expressed is kept clean. Under the current room temperature in summer, the expressed milk can be stored for 4 hours. If it exceeds 4 hours, it is necessary to refrigerate or freeze it. When the baby feeds, you can reheat it without heating. Reheating to 37-38 degrees Celsius is fine. Generally, freshly expressed breast milk is best placed in the refrigerator for cooling. Cooling can preserve it for 24 hours, and the milk within this 24-hour period can be combined and heated before feeding the child.

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