7. Breast Milk Storage and Thawing
TYPE OF
BREAST
MILK
Freshly
Expressed or
Pumped
Thawed,
Previously
Frozen
Leftover from a
Feeding(baby did
not finish the
bottle)
Source: CDC - Human Milk Storage Guidelines
(https//www.cac.gov/breastfeeding/recommendations/
handling_breastmilk.htm)
Note:
1. Always make sure to check the date on the milk's container before using. Do not use
undated milk, or milk that has been stored too long.
2. Thaw frozen milk in the refrigerator or under cool, running water.
3. Heat the milk under warm, running water and gently swirl the container to mix the
milk.
4. If warm water is not available, heat a pan of water on the stove. Once the water is
warm, not boiling, remove the pan from the stove and place milk container in the
pan. Never warm the milk container directly on the stove.
5. Never microwave breast milk because microwaves can cause dangerous hot spots
that could burn you or your baby.
6. Always test the temperature of the milk on the inside of your wrist before feeding it
to a baby. The milk should feel warm, not hot.
7. After thawing, milk should be stored in the refrigerator for no more than 24 hours.
8. Never refreeze thawed milk. Throw away previously frozen milk that is not used
within 24 hours.
24
Storage Location and Temperatures
Countertop
77°F (25°C) or
colder
(room temperature)
Up to 4 Hours
1–2 Hours
Use within 2 hours after the baby is finished feeding
Refrigerator
Freezer
40°F (4°C)
0°F (-18°C)
or colder
Within 6 months
Up to 4 Days
is best
Up to 12 months
is acceptable
NEVER
refreeze human
Up to 1 Day
milk
(24 hours)
after it has
been thawed