Breast Milk Storage Guidelines

Get step-by-step instructions.

Hello Moms!

This show is for all breastfeeding moms! Are you confused on how to store your breast milk for later after you’ve pumped? Is freezing breast milk safe? Keep watching my video for answers to these questions and many more!

Breast Milk Storage Guidelines

Breast Milk Storage Guidelines

Always remember that the first step to storing any kind of milk is to wash your hands! When your hands are dried off (with a clean cloth or towel, not paper towel!), take your freshly-pumped breast milk and pour it carefully into a breast milk storage bag. I hold the bag open with one hand and I pour carefully with the other – trying not to spill! And yes, I have cried over spilled milk (aka liquid gold!).

According to the AAP, once your milk is in the refrigerator, you have up to four days to use it. After the four days are up, you’ll need to discard it. Once your milk is taken out of the fridge, feed it to your baby within 4 to 8 hours. If you know you’ll be on a longer trip and out of the house, bring your bottles in an ice pack or cooler.

When freezing your breast milk, it’s a good idea to freeze as soon as you’re finished pumping. Fresh milk can stay in a freezer bag for up to a month, and in a deep freezer for up to three months! You’ll want to freeze this milk in easy-to-use quantities, such as 2 or 4 oz. or even 6 oz., depending on your baby’s needs.

When thawing breast milk, it’s most convenient to take the bottle out of the freezer the night before and stick it in the fridge when you know for sure that you will use the bottle within 24 hours. Don’t ever put a frozen milk storage bag in the microwave or a boiling pot of water.

For more breast milk storage guidelines, keep watching my video!

What tips do you have for breast milk storage that you can share? Comment below!

Thanks for stopping by and make sure to check back for more! xo

  • Lina

    Dear Cloudmum,

    Is it safe to combine refrigerated milk throughout the day, into one storage bag, then only freezing it at the end of the day?

    Thank you.

  • Swapna

    hi Melissa!

    after defrosting the stored breast milk and once it is at the room temperature.
    Can we put it in microwave for 20 seconds so that milk becomes warm?

    I think directly breastfed milk is slightly warmer due to our body temperature and the baby might like warm milk more.
    am not sure about this just a thought!

    – Swapna

    • NNNOOOOO! Breastmilk can NEVER from what I’ve learned be put in a microwave because the milk can get heated differently and have hot spots that are dangerous for the baby. You have to warm it in lukewarm water. M

  • DivaMama15


    I have two questions about breast milk. I read the breast milk storage guideline and it says freeze milk immediately after pumping. When I breast pump, I sometimes get 2 oz on the left and 3 oz on the right or less or more. I put two first bottles in the fridge and wait for the next breast milk. After I get other second bottles, I put them in the fridge to become cold. Then I mix the first and second bottles together to make 4 oz each. Then pour in the storage bag and put them in the freezer. Is it still good? Or I am supposed to put them in the freeze immediately after pumping?

    Last, when I get the bottle out of the fridge, I shake it, but the breast milk guideline says I am not supposed to do that. I only need to gently swirl. How do I do that? Swirl by my hand or straw to swirl in the bottle?

    Thank you!