Breast milk can last in the fridge at 4 °C (39 °F) or below for about 4 days optimally, but it may be acceptable to use up to 5–8 days if the milk has been collected and stored under very clean conditions, especially when stored toward the back of the fridge where it is coldest. It is recommended to avoid storing breast milk in the fridge door due to temperature inconsistency. If the milk has been thawed from a freezer, it should be used within 24 hours and not refrozen.
In summary:
- Optimal storage in fridge: 4 days
- Acceptable storage under very clean conditions: 5 to 8 days
- Store at the back of the fridge, not in the door
- Thawed milk use within 24 hours, do not refreeze
This guidance helps ensure breast milk stays safe and retains its quality for feeding.
