When it comes to milk storage bags, not all are created equal. The best ones are FDA-approved and specifically designed for storing, freezing, and then thawing breast milk. That means they should be made from materials that are safe to pump into (usually plastic or silicone), feature a wide and easy-to-pour opening, have double zipper seals for extra protection, and include space at the top of the bag to label with the date and amount expressed. They should also be durable and thicker than others on the market, as well as capable of standing upright or laying flat when empty and frozen.
In our tests, we found the Milkies bags to be a solid, wallet-friendly option for exclusively pumping moms. They have a larger capacity of 7 ounces compared to most bags on the market, and they feature storage guidelines right on the front, which can be helpful for new (and sleep deprived) moms. They also have a great double-seal zipper, and they lay flat and evenly when empty and frozen.
If you’re looking for a reusable option, the Momcozy silicone bags are dishwasher-, microwave-, and boiling-water safe, making them the easiest to reheat of all the bags we tested. They also come with a leak-proof screw-on cap, which makes it easy to pump directly into them or use them as bottles. They’re BPA-free and one-piece molded, and they clean up like a dream. They’re also multifunctional and can be used for other liquids, mushy foods, such as juice and rice cereal, and even frozen as ice packs or hand warmers. best milk storage bags