When you pump and store breast milk, there’s nothing more frustrating than seeing your hard-earned work spill over the counter or floor. That’s why it’s important to use the best milk storage bags—a reusable option that will keep your precious liquid from escaping while you pump, freeze or thaw. But not all milk bags are created equal. There are important differences between different brands that make a big difference in how leak-proof, sturdy and easy to use they are.
In addition to being free from BPA, BPS and phthalates, Junobie’s bags are made with a food-grade silicone that is naturally bacteria resistant. They also come with a twist cap, which helps prevent milk loss and can easily be resealed after each use. They lay flat for easy storage, stand up on their own for pouring and offer plenty of space for labeling. Plus, they’re dishwasher and freezer safe. And, because they’re made with zero plastics, you can use them again and again—foregoing thousands of single-use plastic bags in the process. Our favorite part of this milk bag set is that each set comes with a free breast pump adapter, which is a huge help when you’re trying to get the most out of your pumping session.
The Grownsy bags are designed to be as user-friendly as possible, which is why they come with a spout that helps minimize messy dripping. They also feature a matte oil label that resists wear, as well as temperature-sensing labels that tell you whether the milk inside is cold, at the optimal feeding temperature or too hot. Plus, they’re a breeze to clean (they’re dishwasher-, microwave- and boiling water-safe) and have an oxygen barrier that keeps the milk fresh even after you freeze them.
These are the only breast milk storage bags on this list that you can actually plug into a Kiinde bottle, which makes them super convenient and reduces waste by eliminating the need for traditional bottles. They’re also the most leak-proof of all of the milk bags we tested. They do take up more freezer space when laying flat than the other options on this list, but that’s more than made up for by their ease of use. You can attach them to your pump with a built-in adapter, and they’re also great for using with a wearable breast pump or with a pumping funnel. And, they can hold up to 250 ml, or 8.5 ounces, which is the most of any of the other bags on this list.
They might not be as pretty as some of the other options on this list, but these durable Momcozy silicone bags were our favorite when it came to leak-proof performance. They’re made from a thick material that feels strong and sturdy and they also hold up well when laying flat in the freezer. They’re dishwasher-, microwave- and boiling-water safe, too, and they come with a free set of breast pump adapters, which is a nice bonus.best reusable milk storage bags