Breast milk storage bags offer many practical benefits for both mother and baby. Firstly, they help preserve the milk safely, maintaining its nutrients and preventing bacterial contamination. Thanks to their compact design, storage bags save space in the refrigerator and freezer, making it easier for mothers to organize and manage their milk supply. And more.
With so many types of breast milk storage bags on the market, it can be challenging to know which ones are the best. Instead of spending a lot of money and time trying each one, read this article to discover the top 10 best breast milk storage bags in 2024. We have thoroughly researched and evaluated to bring you reliable options, ensuring that you can store your breast milk safely and conveniently.
What features are expected for a good breast milk storage bag?
Breast milk storage bags are special bags used to store breast milk after milk has been pumped. These storage bags must be designed with certain features to protect breast milk from contamination and keep it nutritious for a long time.
There are many options on the market today, and most breast milk storage bags are similar in design and features. However, even a small difference can make a big impact in the long run. Here are some important features that mothers can expect for a good breast milk storage bag, including material, capacity, design, durability, space-saving, and measuring marks.
Safe material: The material of the breast milk storage bag must be absolutely safe for the baby’s health. According to the Centers for Disease Control and Prevention (CDC), the material should be free from BPA, PVC, and phthalates to prevent harmful chemicals from entering the milk. A good breast milk storage bag should be made of food-grade plastic or silicone1.
Capacity of storage bags: When buying breast milk storage bags, mothers need to consider the capacity of the bags to match the amount of milk their baby will consume in each feeding. The capacity should be large enough to hold the amount of milk pumped each time, but not too large to avoid wasting storage space. Additionally, choosing the right capacity helps save a lot of money and space in the freezer. This way, you will have enough room to store more milk and also find it easier to locate the milk when needed.
There are two types of common capacity of breast milk storage bags: a smaller capacity (2-4 ounces) and a larger capacity (6-8 ounces)
Spill-proof and leak-proof design:
In short, a breast milk storage bag with a good spill-proof and leak-proof design will help mothers feel more secure in storing milk, especially when traveling or placing it in the freezer. There is no doubt that breast milk is a precious source of nutrition, so you don’t want to waste it just because the storage bag leaks or spills easily. Not only that, a leaky bag makes it easier for bacteria to enter, which can affect your baby’s health. Therefore, mothers can choose among single zip-top, double-zippered locks, screw thread caps.
Durability: Besides safe material, you surely expect a breast milk storage bag to be durable. High durability will help mothers avoid the bag tearing or puncturing during use. The bag should be made from thick, double-layered plastic or silicone and sealed with a zipper. The seams must be reinforced to prevent tearing, and some bags even have exterior trim for better cushioning in case the bag is dropped. Additionally, the material needs to withstand both high temperatures (when warming) and low temperatures (when freezing) to properly store the milk.
Space-saving: Breast milk storage bags can be leak-proof and spill-proof, but their ability to stand upright in the fridge or stack well in the freezer is also very important. This is especially crucial for mothers who pump a lot of milk or have small freezers. If you only plan to store milk for a day or two, bags with a wide base that can stand upright in the fridge will be very handy. On the other hand, if you regularly store large amounts of milk at once, flat bags that can be stacked will be the best choice.
Accurate measuring marks: It help mothers know exactly how much milk has been pumped, allowing them to portion it appropriately for the baby.
Top 5 best breast milk storage bags
Best overall: Kiinde breast milk storage bags
Product information
- Brand: Kiinde
- Price: $16.99 – $17.99 for a pack of 40 storage bags
- Material: Polyethylene (PE)
- Capacity: 6 – 8 ounces
| Pros | Cons |
| ✅ A useful twist-top design helps reduce the risk of leaks. ✅ Material is completely safe, free from BPA, PVC, and phthalates ✅ Easy-to-use ✅ Ability to directly pump into storage bag | ❌Designed specifically for the Kiinde pump and bottle system. Therefore, it can be inconvenient if you don’t use the other parts. ❌The cap makes freezing difficult and takes up more space in the freezer. ❌The measuring marks on the bag may be inaccurate. |
Kiinde breast milk storage bags are designed to be used directly with breast pumps through an adapter. This way, you can pump milk directly into the bag without spending much time on cleaning. When it’s time to feed your baby, the milk can be taken directly from the bag with the appropriate nipple and bottle connectors. Kiinde bags come in various sizes from 6 ounces to 8 ounces, with ounce and milliliter measurements. The twist-top design ensures that the milk doesn’t leak, even if the bag is dropped
Best leak-proof: NUK breast milk storage bag
Product information
- Brand: NUK
- Price: $15 for a pack of 50 storage bags
- Capacity: about 6 ounce
| Pros | Cons |
| ✅ Material is completely safe, free from BPA, PVC, and phthalates ✅ Rounded base that can prevent leak from corners of bagStacks well in the freezer. ✅ Thick bag – won’t easily tear after freezing. ✅ Easy zipper. ✅ Highly popular. | ❌ Thin plastic material ❌ Inaccurate measurements ❌ Not as thick as other breast milk storage bags (although thick enough to withstand freezing). |
NUK is probably not a strange brand to many parents. This brand is famous for its high-quality products for children. So, you don’t need to worry too much about the quality of NUK breast milk storage bags. NUK storage bags have double zippers, reinforced seams, and thick plastic that ensures they won’t tear from items in the freezer. The durable, waterproof material allows you to thaw the milk by soaking them in warm water without losing the important nutrients in the milk. Additionally, the oxygen barrier keeps the milk fresh even after being stored in the freezer. These features make NUK bags a reliable and popular choice for many parents.
Best to attach to pump: Lansinoh breast milk storage bag
Product information
- Brand: Lansinoh
- Price: about $13.98 for a pack of 100 storage bags
- Material: Low density Polyethylene (LDPE)
- Capacity: 6 ounces
| Pros | Cons |
| ✅ Can pump milk directly into the storage bag. ✅ Side seams are reinforced for durability ✅ Compatible with most major pump brands using an adapter ✅ Material is completely safe, free from BPA, PVC, and phthalates ✅ Smart design – stores flat. | ❌ The design makes it easy to store flat but difficult to stand upright when pouring milk ❌ The plastic is thinner than other bags and often tears after freezing ❌ Leaks ❌ Inaccurate measurements |
Lansinoh breast milk storage bags are popular among parents, with nearly 90,000 positive reviews on Amazon. These bags are one of the most affordable options, with a wide mouth that makes them easy to fill and able to hold up to 6 ounces of breastmilk. The bags freeze very flat and evenly, thus storage is more convenient. The biggest advantage of Lansinoh storage bags is that you can pump directly into the bag using most pump brands on the market through an adapter. Although they are slightly thinner than other brands and can tear, this helps the milk thaw faster. However, the double zipper may not be very secure. In some unfortunate cases during transportation, milk often leaks through the first zipper.
Best for storage: Nanobebe breast milk storage bags
Product information
- Brand: NANOBÉBÉ
- Price: $9.99 for a pack of 50 storage bags
- Capacity: up to 5 ounces
| Pros | Cons |
| ✅ Convenient storage ✅ High-quality, thick, BPA-free material ✅ Easy to pour milk. | ❌ Difficult to pour milk into the bag ❌ Need to buy extra storage racks ❌ Small capacity. |
Nanobébé breast milk storage bags are highly rated by many parents for their convenient design and excellent milk preservation. With 50 stackable bags in the holder, you can keep your freezer organized and easily follow the “first in, first out” principle. Nanobébé bags also have a special feature of freezing and thawing twice as fast as regular bags. The bags are made from extremely thick, BPA-free material with double zippers, ensuring no leaks or punctures.
Best to reuse: Momcozy breast milk storage bags
Product information
- Brand: Momcozy
- Price: $35.99 for 5 storage bags
- Material: silicon
- Capacity: up to 8 ounces
| Pros | Cons |
| ✅ The twist-top design ensures a tight seal, making it easy to pour milk without worrying about leaks ✅ Fashionable colors ✅ Eco-friendly ✅ Can be reused with various liquids after weaning ✅ Dishwasher and microwave safe | ❌ Takes more time to clean compared to disposable bags ❌ Takes up more space in the freezer |
Momcozy silicone breast milk storage bags are a favorite choice among many parents for their quality and versatility. Made from food-grade silicone, Momcozy storage bags can be reused multiple times. They are a suitable alternative to disposable storage bags, helping parents save significant costs and protect the environment. The silicone material is suitable for freezing, warming, and dishwasher-safe without worrying about the bags bursting. Additionally, the bags can be reused for other purposes after your baby has weaned, such as storing other liquid or pureed foods like juices, cereals, and purees, as well as being used as ice packs or hand warmers.
Bottom Line
The top 5 best breast milk storage bags in 2024 have been evaluated based on various criteria, including leak-proof ability, durability, and compatibility with breast pumps. Each bag has its own pros and cons, but they all aim to help mothers save time, money, and protect their breast milk in the best way possible.
Sources
- The Centers for Disease Control and Prevention. STORAGE AND PREPARATIONOF BREAST MILK ↩︎
