Freshly expressed breast milk can be stored in the refrigerator at 4°C (39°F) for up to 4 days according to the CDC, Mayo Clinic, and other health authorities
. Some sources indicate that under very clean conditions and if stored in the coldest part of the fridge (not the door), breast milk may be acceptable for up to 5 to 8 days, but 4 days is the commonly recommended safe duration
. Key points for storing breast milk in the fridge:
- Use clean, food-grade containers or special breast milk storage bags.
- Store milk in the back of the refrigerator where the temperature is most stable and coldest.
- Label containers with the date expressed.
- Avoid storing milk in the fridge door due to temperature fluctuations.
- Use refrigerated milk within 4 days for best quality and safety.
If you do not plan to use the milk within 4 days, it is recommended to freeze it immediately for longer storage
. In summary, breast milk can safely stay in the fridge for up to 4 days, with some flexibility up to 5-8 days under optimal conditions, but 4 days is the standard guideline to ensure quality and safety
