Whether you’re pumping at home or on the go, your breast milk is liquid gold and you want to ensure that it doesn’t spill or leak, wasting precious fluid. But that’s not always easy, and it depends on the quality of your storage bags. The best breast milk storage bags are designed to be leak-proof, and many feature a pour spout to streamline the transfer from bag to bottle. They’re also easily readable, with bold labeling that makes it simple to read your ounces and date, and they’re freezer and dishwasher safe for convenience.
We scoured hundreds of breast milk storage bags to find the ones that work best for moms on-the-go. To make the cut, a bag needed to be easily sterilized, not tear at the seams, hold at least 6 ounces of milk and have a pour spout that works well. We also looked for a wide mouth to ensure easy filling and double-zipper closure for leak-proof protection. Finally, we wanted a storage bag that was stackable in the freezer and fridge for organization and ease of use.
The winner: Medela
In our testing, these bags earned top marks thanks to their sturdy feel and leak-proof protection. They’re also affordable, with a pack of 100 costing under $16. Women love that they’re made of food-grade BPA-free plastic, and they come with a handy resealable transport pouch to keep unused bags clean. While they aren’t designed to be pumped into directly, women say they’re very comfortable to use for simple milk storage, and that they feel much thicker than some of the other options on this list, making them easier to store.
The runner-up: Nuk Seal N’ Go
If you need a good milk storage bag but don’t have the budget for the Medela bags, these are a solid option. They have a wide mouth to make it easy to fill, and they can be used with a pumping adapter (sold separately). They’re also made from thick plastic and double-sealed for leak-proof protection. They’re a little more floppy than some of the other breast milk storage bags on this list, but they still stand up well in the fridge and freezer. They have a double-zip lock and reinforced seams to help them resist being torn by other items in the freezer, and they’re labeled with a date and ounces.
The winner: Junobie
These reusable breast milk storage bags have a unique locking slider that helps the bag stay closed while in use. They also have a clear window that lets you see your milk levels without opening the bag. They’re a great choice for on-the-go and work with all major pumps. They’re easily readable, with an ounce marker on the side and a clear label for writing on the bottom. They’re also stackable in the fridge and freezer, and they have a handle for easy carrying. They’re also dishwasher and microwave safe. This set of two milk bags holds up to 10 ounces and comes in multiple colors to match your outfit. best reusable breast milk storage bags