Best Breast Milk Storage Bags

Updated: January 6, 2021
Best Breast Milk Storage Bags

If you’re a nursing mom or are planning on breastfeeding once baby arrives, you’ve probably realized that feeding your little one requires a few accessories. Chances are, if you’re planning on breastfeeding, you’re also planning on pumping at some point — and that calls for more than just a breast pump. You also need a place to store the milk you express, and that's where breast milk storage bags come in handy.

What are breast milk storage bags?

Breast milk storage bags help free up space in your bottles and let you store breast milk somewhere (your fridge or freezer) for later use. They are unlike storage bags you’ve used for food (so you can’t substitute a plastic sandwich bag, for example). Breast milk storage bags are much thicker and are BPA-free and FDA-approved for the use of storing and protecting breast milk during transportation, thawing and freezing.

Also helpful? “Most breast milk storage bags have ounce or milliliter markers on the side to track the volume of milk you are storing and feeding, which can be especially helpful when you go back to work,” says Helen Anderson, a lactation educator and founder of Milkies Milk Saver.

Choosing the best breast milk storage bags

When shopping for breast milk storage bags, it’s important to keep a few things in mind:

  • Make sure they're made of food-grade plastic. This assures you that the manufacturer knows exactly what is in the bag’s plastic, and that it is specifically designed for breast milk storage.
  • Check for a safety or tamper-resistant seal. A firm seal that you have to remove prior to use ensures that the bag is clean and uncontaminated.
  • Consider how it stores. A good breast milk storage bag will freeze flat and take up minimal space in your freezer.

If you’re looking to save time, consider bags that let you pump directly into them instead of bottles. This allows you to skip the step of transferring milk from bottle to bag (plus, you won’t have extra bottles to clean!).

Here are some of the most efficient and trusted breast milk storage bags that won’t leave you crying over spilled milk.

Why Trust Us?

Best Overall Breast Milk Storage Bags

Lansinoh Breastmilk Storage Bags

Best Breast Milk Storage Bags - Lansinoh Breastmilk Storage Bags
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Amazon
$11 for 50 bags
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$9 for 50 bags
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Target
$9 for 50 bags
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Why We Love It

There’s a reason these are one of the most popular breast milk storage bags around, and it’s not just because Lansinoh has been a trusted name in the breastfeeding space for decades. These beloved breast milk bags cover all the bases: They’re made from thick, BPA- and BPS-free plastic that’s presterilized for safe use.

If you have the Lansinoh Breast Pump, you can pump directly into these bags, saving you time and dish washing (many moms report that the bags fit around other types of breast pumps, too).

Includes: 50 6-ounce bags (180 milliliters)

Most Durable Breast Milk Storage Bags

Dr. Brown's Breastmilk Storage Bags

Best Breast Milk Storage Bags - Dr. Brown's Breastmilk Storage Bags
Buying Options:
Amazon
Amazon
$11 for 50 bags
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buybuyBaby
$11 for 50 bags
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Walmart
$14 for 50 bags
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Why We Love It

These super-durable storage bags are made of a thick material that’s BPA-free and pre-sterilized. Each bag has plenty of space for labeling, so you can easily track important information like the date the milk was expressed, amount of milk and your baby’s name in case the bags are being stored at a childcare facility. Last but certainly not least, these bags boast an additional exterior trim to cushion them in case they're dropped.

Includes: 50 6-ounce bags (180 milliliters)

Best Affordable Breast Milk Storage Bags

Philips Avent Breast Milk Storage Bags

Best Breast Milk Storage Bags - Philips Avent Breast Milk Storage Bags
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Amazon
Amazon
$7 for 50 bags
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Walmart
$11 for 50 bags
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Bed Bath & Beyond
$7
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Why We Love It

Just like their bottles, Philips Avent delivers function and design with these breast milk storage bags. At an especially affordable price point, they have all the features you need, including double-zipper closure, presterilization, dual layers for added thickness and a wide opening so you can easily pour milk in and out (they even stand up on their own, so you can pour with both hands!). They’re BPA-free and have a tamper evident-seal, too.

Includes: 50 6-ounce bags (180 milliliters)

Best Recyclable Breast Milk Storage Bags

Kiinde Twist Pouch Breast Milk Storage Bags

Best Breast Milk Storage Bags - Kiinde Twist Pouch Breast Milk Storage Bags
Buying Options:
Amazon
Amazon
$12 for 40 bags
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$13 for 40 bags
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Walmart
$12
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Why We Love It

What makes these breast milk storage bags so unique? Their innovative twist-and-lock design allows you to pump directly into the bags, or use them for the transfer of milk when you’re done pumping.  

Instead of a zip closure, they use a secure threaded cap — similar to a bottle — which eliminates the possibility of accidental spills. Environmentally-conscious parents will also appreciate the fact that these bags (and their caps) are recyclable.

Includes: 40 5-ounce bags (150 milliliters)

Best Easy-to-Use Breast Milk Storage Bags

Medela Breast Milk Storage Bags

Best Breast Milk Storage Bags - Medela Breast Milk Storage Bags
Buying Options:
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Amazon
$20 for 100 bags
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$15 for 100 bags
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Walmart
$15 for 100 bags
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Why We Love It

Medela bags are a favorite among breastfeeding mothers for their efficiency and ease of use, so it’s no surprise that the brand's storage bags are as popular as their pumps. They’re BPA-free, hygienically pre-sealed and made of a durable material that does a great job at preventing leaks. The design also allows you to stand the bags up, so you can easily pour milk into them.

Includes: 100 6-ounce bags (180 milliliters)

Best Space-Saving Breast Milk Storage Bags

Nanobébé 50 Breastmilk Storage Bags

Best Breast Milk Storage Bags - Nanobebe Breastmilk Storage Bags
Buying Options:
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Amazon
$10 for 50 bags
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$10 for 50 bags
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Why We Love It

One of the biggest draws of these BPA-free storage bags? They have a stackable storage design, which helps save space in your already-packed freezer. The vertical storage unit (sold separately) fits 50 storage bags seamlessly and allows for easy organization of new-to-old bags of milk. Another benefit is that they defrost fairly quickly — two times faster than most.

Includes: 50 5-ounce bags (150 milliliters)

Best Mess-Free Breast Milk Storage Bags

Ameda Store 'N Pour Breast Milk Storage Bags

Best Breast Milk Storage Bags - Ameda Store Breast Milk Storage Bags
Buying Options:
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Amazon
$20 for 40 bags
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Why We Love It

Just as the name suggests, these storage bags do a great job of ensuring mess-free transfer from bag to bottle for frozen or freshly pumped milk. The bag is made from thick, BPA-free material and stands up on its own to allow for easy pouring out of the teapot-like spout. If you have the Ameda pump, you can express milk directly into the bags before storing them in the fridge or freezer. The only downside? Some moms say that the irregular shape makes them a little tougher to store.

Includes: 40 5-ounce bags (150 milliliter)

Best Oversized Breast Milk Storage Bags

Milkies "No-Break, No-Leak" Breast Milk Storage Bags

Best Breast Milk Storage Bags - Milkies Breast Milk Storage Bags
Buying Options:
Amazon
Amazon
$12 for 50 bags
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Walmart
$12
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Why We Love It

Unlike most breast milk storage bags, these allow you to fill up to 7 ounces of milk. Another perk is that they include breast milk storage guidelines on the front of each bag, so you never have to wonder how long you can leave milk out on the counter or in the freezer — all temperature and time recommendations are listed clearly. Like most, they are made of BPA-free plastic and have double-zipper closures to prevent leaking.

Includes: 50 7-ounce bags (200 milliliter)