The 8 Best Breast Milk Storage Bags of 2021

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Our Top Picks
Bags hold up to 6 ounces, are sterilized and ready to go, and the double zipper prevents messy leaks.
Thick and durable... simple and straightforward to use, self-standing, so they’re easy to fill.
A double-zipper closure and a flat profile for freezing and defrosting... the price is hard to beat.
Each come with an easy-pour spout to make sure it all gets into the bottle with no waste.
Designed to hold 8 ounces, and some women report that they can get up to 10 ounces in them.
Collect, store and prepare the milk all in one pouch, which is both convenient and economical.
A solid, affordable option for safely storing breast milk... come with a 100% leak-proof guarantee.
Designed to hold up to 6.5 ounces of milk, freeze flat for easy storage and have an attached label.

Best Overall: Lansinoh Store Breastmilk Storage Bags, 100 Count

Lansinoh Breastmilk Storage Bags - 100 ct

For all-around solid breast milk storage bags, mamas swear by Lansinoh. The bags, which hold up to 6 ounces, are sterilized and ready to go, and the double zipper prevents messy leaks. They can lay flat in your refrigerator or freezer for easy storage, and they have a pour spout to make transferring the breast milk into a bottle easy.

For added convenience, you can pump directly into these bags, so there are no extra bottles to wash. If you use a Lansinoh pump, then you’re all set. If you use another brand, you can still pump directly into the bags, you’ll just need to use an adapter (sold separately).

While a few women report problems with the bags leaking, most sing the praises of these bags for ease of use, durability, and price.

Runner-Up, Best Overall: Dr. Brown's Store Breastmilk Storage Bag, 50 Count

Dr. Brown’s Breast Milk Storage Bags - 50ct

Thick and durable, these breast milk storage bags from Dr. Brown’s are simple and straightforward to use. They can hold up to 6 ounces of milk and are self-standing, so they’re easy to fill.  

Women say these extra-thick, BPA-free bags are sturdy, and countless satisfied customers say double-zipper closure means they never leak. They also like the fact that they lie flat in the freezer, which means you can store more in a smaller area. You can’t pump directly into these bags, but their high quality makes them worth the extra steps for many.

Best Budget: Medela 6oz/180mL Breast Milk Storage Bags

Medela Breast Milk Storage Bags, 100 Count Ready to Use Milk Storage Bags for Breastfeeding

For less than 13 cents a bag, these breast milk storage bags from Medela get top marks all around. The self-standing bags have many of the same features as more expensive bags, such as a double-zipper closure and a flat profile for freezing and defrosting, but the price is hard to beat. Bonus: They also come with a transport pouch that keeps unused bags clean.

These bags aren’t designed to be pumped into directly, but for simple storage, women say they’re great. They say the material is strong, and they feel confident storing their precious breast milk in these bags. While bags are labeled to hold 6 ounces, many women report you can actually get much more than that in them.

Best Breast With Spouts: Ameda Store Store N Pour Breast Milk Storage Bags

Ameda Store N Pour Breast Milk Storage Bags

When it comes to pouring your breast milk from the bag into a bottle, you want to make sure that you don’t spill a drop. These breast milk storage bags from Ameda each come with an easy-pour spout to make sure it all gets into the bottle with no waste. To use, you just tear off the corner and pour. You can pump directly into these bags, though you will need an adapter.

Women say they’re convenient and well-made, and it’s a bit perplexing why more bags don’t come with a similar spout. Some report leaks with these bags and they only hold 5 ounces, so if you’re pumping a lot of milk they may not be the best choice. Overall, however, most women give these bags a glowing review.

Best Large Quantity: Mommy's Precious 110 Count Breastmilk Storage Bags

If you’re pumping large quantities of milk, good for you mama, but you also want storage bags that can hold a significant amount of all that goodness you’re producing. While many breast milk storage bags on the market store just 5–6 ounces of milk, these from Mommy’s Precious are designed to hold 8 ounces, and some women report that they can get up to 10 ounces in them. The bags are self-standing and freeze flat.

Hundreds of women give these bags a top rating. They say they’re durable and don’t leak at all, and they love the bigger size as it means using fewer bags overall.

Best for Travel: Kiinde Twist Cap Breast Milk Storage Bags

For a twist on traditional zippered breast milk storage bags, there are these bags from Kiinde. You can collect, store and prepare the milk for your baby all in one pouch, which is both convenient and economical. They lock onto any pump with an adapter, which is sold separately, and a twist-on cap keeps them secure while they're being frozen. When it’s time to feed ​the baby, you attach a nipple to the top. There are no bottles or other accessories to wash. The bags are self-standing, freeze flat, and are designed to hold up to 6 ounces of milk. They are also available in 8 oz size.

While they’re a bit more expensive than traditional bags, thousands of women say they’re worth it. While some say the twist caps take up more freezer space and make them more difficult to organize, most say the ease of use makes up for that.

Best No-Leak: NUK Simply Natural Seal n' Go Breast Milk Bags

Every drop counts when it comes to breast milk, and these Nuk Seal N Go breast milk storage bags come with a 100 percent leak-proof guarantee. Thick and durable, the self-standing bags are designed to hold up to 6 ounces of milk.

They’re not designed for direct pumping, and some women report that they don’t stand up well when filling. Overall, however, most women say they’re a solid, affordable option for safely storing breast milk.

Best Easy-to-Use: Milkies Breastmilk Storage Bags

When you’re a new nursing mom, you have more than a few things on your mind, so it’s nice that these breast milk storage bags from Milkies have the guidelines for safely storing breast milk printed on each one. Beyond that, they’re solid bags that are a go-to for many moms, even if they’re so seasoned they could recite those guidelines in their sleep. 

Designed to hold up to 7 ounces of milk, the bags freeze flat for easy storage and have an attached label you can date. Moms say they’re sturdy and easy to use and are great for caregivers who may need a reminder about the proper temperatures at which breast milk should be stored and served.

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