14. Storing Breast Milk
Storing Breast Milk in a Medela Cooler Bag
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• Your Medela cooler bag requires one Medela contoured ice pack. Up to four 5 oz/150 mL bottles
of breast milk will stay cool for up to 10 hours in a room temperature environment inside your
pump bag. Up to four 5 oz/150 mL bottles of breast milk will stay cool for up to 8 hours in a room
temperature environment, inside the cooler, stored outside of the pump bag.
• As soon as you are finished pumping, place the breast milk bottle or breast milk storage bag
in the cooler bag with the ice pack.
• Transfer breast milk bottles or breast milk storage bags to the refrigerator or freezer once
you are home.
References: www.BreastmilkGuidelines.com
Storage Guidelines for Freshly Expressed Breast Milk
(For Healthy Term Babies)
Room
Refrigerator
Temperature
39°F (4°C)
60°F to 77°F
or colder
(16° C to 25° C)
Up to 4 hours
Up to 3 days
is best
*Up to 6 hours
*Up to 5 days
for milk
for milk
expressed
expressed
under very
under very
clean
conditions
conditions
Freezer
0°F (-18°C)
or colder
Up to 6 months
is best
is best
*Up to 9 months
for milk
expressed
under very
clean
clean
conditions
Breast Milk
Thawed in the
Refrigerator
At room
temperature:
Up to 2 hours
Refrigerator:
Up to 24 hours
DO NOT
REFREEZE