The 9 Best Breast Milk Storage Bags of 2019

Pump and store your milk efficiently

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Breast milk is the liquid gold mothers’ bodies magically produce to feed their babies. Every drop is precious, so if you’re pumping, you want to make sure the bags you choose to store it in are going to protect it.

You can’t use any old plastic bag to store breast milk, you need those that are made specifically to store breast milk. They're not only thicker than regular plastic bags, but they’re also sterile to make sure your baby is as safe as possible.

There are a variety of breast milk storage bag options on the market that come in various sizes and with various features. Whether you want to pump directly into a bag, or plan to take the bags on-the-go frequently, there are options aplenty. To help you find the right breast milk storage bags for you, we reviewed those most popular with nursing moms. Here are the top breast milk storage bags to consider.

Our Top Picks

Best Overall: Lansinoh Breastmilk Storage Bags - 100 ct

Lansinoh Breastmilk Storage Bags - 100 ct

Courtesy of Amazon

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 Breast Milk Storage Bags

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

Courtesy of Target

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 Breast Milk Storage Bags

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

Courtesy of Walmart

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 With Thermal Sensors: 60 Thermal Sensor Breast Milk Bags

These breast milk bags feature most of the same options as other popular bags, but they stand out because each one is equipped with a thermal sensor that indicates when your breast milk is just the right temperature for baby after defrosting. It will also let you know if it’s too hot, so you don’t have to worry about baby getting burned.

The self-standing bags each hold up to 7 ounces of breast milk and are made from thick, BPA-free plastic. Customers say they seal well, don’t leak, and are a good value for the price.

Best Breast With Spouts: Ameda Store and Pour

Ameda Store N Pour Breast Milk Storage Bags

Courtesy of Amazon

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 Breastmilk 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 five-star rating on Amazon. 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

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.

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 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"No-Break, No-Leak" Breast Milk 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 6.5 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.

Our Process

Our writers spent 5 hours researching the most popular breast milk storage bags on the market. Before making their final recommendations, they considered 30 different storage bags overall, screened options from 15 different brands and manufacturers, read over 50 user reviews (both positive and negative). All of this research adds up to recommendations you can trust.

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