The 10 Best Breast Milk Storage Bags

For mothers who choose to breastfeed their babies, breastmilk storage bags are a great solution to allow you to pre-prepare your feeding routine. They are also great for working mothers who need to use daycare and childminding services. You cannot use zip-lock bags to store breast milk as they are simply not secure enough and are not always free of certain chemicals which can be harmful to your baby.

It is possible to store several ounces of milk in regular storage containers, however, this makes it harder to freeze and when you transfer the milk to a baby bottle – the process can be somewhat clumsy. Breastmilk storage bags to save your produced milk, and make it easy for you to store and decant your breastmilk that you have worked so hard to produce.

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  • Ability to pump straight into bag
  • Reinforced sides
  • Take up minimal space
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  • Convenient filling and feeding system
  • Made out of recyclable materials
  • Extra security against leakages
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  • Leakproof double lock for extra security
  • Pouring spout
  • Experienced company

They ensure minimal spillage and make the process much easier as you can have meals ready to go for when you are at work or for night time feeds when you are too tired to breastfeed directly.

View the Best Breast Milk Storage Bags for Pumping, Below.

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1. Lansinoh Milk Storage Bags

Lansinoh Breastmilk Storage Bags

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Using a Lansinoh Breast Pump, you can pump milk directly into these bags. There are also adapters available for other breast pumps. You simply attach the bag to the expression set and the milk flows straight into the bag. Lansinoh was founded by a breastfeeding mother who wanted to make the process easier for other moms. Lansinoh recently updated these Lansinoh bags to include reinforced side seals that make them some of the strongest bags in the market.

The Lansinoh breast milk storage bags can be frozen and refrigerated and hold up to 6oz of breastmilk. They are also designed so they can be stood up in the refrigerator, or laid flat in the freezer. This ensures the Lansinoh bags take up minimal space in the process of storing them. There is also a spout for optimum convenience when transferring milk from the bag to the bottle.

Why We Like It

  • Ability to pump straight into bag
  • Reinforced sides
  • Take up minimal space
  • Bag holds up to 6 ounces of milk

Our Verdict
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2. Kiinde Breast Milk Storage Twist Starter Pouch

Kiinde Breast Milk Storage Twist Pouch

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Designed by a group of MIT scientist parents, Kiinde aims to make baby feeding easier. This Kiinde Breast Milk Storage Twist Starter Pouch is an excellent option for working mothers who are looking to save time when feeding their baby. There are a host of accessories available which mean you can pump straight into the bag, store it and then insert it directly into a baby bottle allowing your baby to drink straight from the pouch.

The Kiinde Breast Milk Storage Twist Starter Pouch bags are sterilized and made with reinforced materials. The screw on cap increases security to prevent spillages, however, it can limit storage space. The Kiinde twist breast milk storage pouches can stand up and lay flat, however, some parents have said that the cap on the bottle takes up a lot of space. There have also been some concerns about the accuracy of measurements on the bag.

We recommend making sure the Kiinde Breast Milk Storage Twist Starter Pouch bag is fully expanded before filling, and then squeezing the air out afterward. For extra peace of mind, you can weigh the Kiinde twist breast milk storage pouches. Nevertheless, these are the best bags for convenience.

Why We Like It

  • Convenient filling and feeding system
  • Made out of recyclable materials
  • Extra security against leakages

Our Verdict
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3. NUK Seal N Go Breast Milk Bags

NUK Seal N Go Breast Milk Bags

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Like the other bags on this list, NUK Seal N Go Breast Milk bags are BPA free and pre-sterilised. They can be stood up and laid flat, and have a simple double zip lock system to prevent leakages. The bags come without a gusset to further prevent corner leakages and are easy to fill and remove air from. There is a simple pouring spout at the top to make transference to a bottle easy.

These bags hold up to 6oz of milk and can be refrigerated and frozen. The plastic is reinforced and reviews have stated that it is one of the most durable bags on the market. NUK has been making baby products for over 50 years, so have plenty of experience making quality items to keep you and your baby happy and healthy.

Why We Like It

  • Leakproof double lock for extra security
  • Pouring spout
  • Experienced company
  • Easy to close
  • Bag holds up to 6 ounces of milk

Our Verdict
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4. Mommy’s Precious Milk Storage Bags

Mommy’s Precious Milk Storage Bags

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Cheaper than other bags on this list, these are a great option for moms on a budget. They come with 110 bags in a single pack and have many of the features of more expensive brands. They can also stand up and lay flat, so are perfect for both refrigerator and freezer. The bags are protected from leakages and reviews claim the measurements are far more accurate than on other brands.

They are, of course, pre-sterilized. There have been some concerns over whether these bags fit in a bottle warmer when frozen. We suggest defrosting the bag in warm water, and then the defrosted milk can be heated in a bottle warmer.

Why We Like It

  • Good value for money
  • Accurate measurements
  • Leakproof

Our Verdict
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5. Medela Pump and Save Bags

Medela Pump and Save Bags

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These bags can be directly attached to Medela breast pumps and also come with adaptors to attach them to other pumps. There is a protective oxygen barrier to prevent contamination when storing in the refrigerator or freezer. These bags can stand upright and lay flat. They are a bit pricier - with the largest pack size being only 50 bags - but are ideal if you are using a compatible breast pump and want the convenience or pumping straight into the bag.

The Medela breast pumps themselves are also designed to help you express more milk than other pumps, so it is worth considering buying it together with these bags.

Why We Like It

  • Protecting Oxygen Barrier to prevent contamination
  • Can pump directly into the bag
  • Great product range

Our Verdict
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6. Dr Brown’s Storage Bags

Dr Brown’s Breastmilk Bags

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These simplistic Dr Browns breastmilk storage bags have great reviews claiming they are the most leak-proof bags on the market. They can hold up to 6oz of baby milk and are very compact meaning you save a lot of space by storing these. The measurements are also a lot more accurate on these bags, which is great for mothers who are keeping an eye on how much their baby is drinking.

There’s a handy label on the top of the pouch making it easy to mark the expiration date and your baby’s name if they go to a daycare center. They are pre-sterilized and have a double zipper seal. At only 50 bags per box, the Dr Browns breast milk storage bags are a little pricier than other bags on the market but the extra investment is worth it for a secure, storable product.

Why We Like It

  • Very durable bag
  • Double zipper seal
  • Accurate measurements
  • Bag holds up to 6 ounces of milk

Our Verdict
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7. Philips AVENT Breast Milk Storage Bags

Philips AVENT Bags

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These Philips AVENT breast milk storage bag pouches are at the lower price end, so are a great way to keep control of costs when purchasing breastmilk bags. They are secured with a double zipper and have a tamper evident seal to give you peace of mind that your milk is safe. There have been some concerns about how the bags open and refilling the bags. These bags are self standing, so we recommend taking some precaution when filling.

To open, we suggest using scissors to prevent a jagged edge. It is also best to store the Philips AVENT breast milk storage bag upright, which may cause some space issues. Nevertheless, these are durable bags with reinforced, BPA-free materials making them one of the safest options available, as well as the cheapest.

Why We Like It

  • Budget friendly
  • Durable
  • Tamper evident seal

Our Verdict
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8. Tommee Tippee Pump and Go Bags

Tommee Tippee Pump and Go

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Like the Kiinde bags, these aim to simplify the breastfeeding process by using a single pouch to express, store and feed. When purchased with the Tommee Tippee breast pump and bottles, you can fill this bag directly and then use the same bag to feed your baby. There are also adapters available to allow them to work with other pumps. The bags use a screw top design to facilitate this convenient feature, but it also ensures extra protection against leakages.

The bottle attachments are dishwasher safe, however, the bags (like all breastmilk bags) are disposable. The UK based company have worked excessively to refine their products and have recently improved the measurements on their bags. The customer service is excellent, meaning it is easy to discuss and solve any issues you may have.

Why We Like It

  • One bag for expressing, storing and feeding
  • Leak-proof screw top opening
  • Great customer service

Our Verdict
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9. Milkies “No-Break No-Leak” Bags

Milkies “No-Break No-Leak”

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These bags come with breastmilk storage guidelines on the front making it easier for you to know how long to store them to maximize the nutritional value of the breastmilk. They stand up as well as lie flat and are incredibly compact when stored in the freezer. They come pre-sterilized for easy use, and are free from BPA. The sides are reinforced to prevent leakages, and many of the reviews have confirmed that these bags are leak proof.

The double ziplock secures them further, and there is a spout on the top for easy pouring. The food-grade plastic is recyclable and reviews have stated these are very easy to fill.

Why We Like It

  • Storage guidelines included
  • Recyclable plastic
  • Easy to fill
  • Leakproof double lock

Our Verdict
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10. Ameda Store N Pour Bags

Ameda Store N Pour

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These bags comes with adapters so you can easily pump directly into the Ameda bag with a variety of breast pumps. There is a tight seal and the bags can be stored flat in either the refrigerator or freezer. A few reviews have claimed they are not great at standing up, so this might be worth considering. The spout attachment at the side makes it easier to pour directly into feeding bottles. You simply tear it open and pour.

This makes the Ameda bag great for nighttime feeding as it reduces the effort required to make sure you do not spill any milk. They are smaller in capacity than other bags on this list - only holding 5 ounces of milk per bag. We suggest these as a great option for newborns. Once the baby has grown to need more milk and nighttime feeds become less frequent, you may need to invest in larger bags.

Why We Like It

  • Handy tear and pour spout
  • Tight seal
  • Great for nighttime feeds
  • Bag holds 5 ounces of milk per bag

Our Verdict
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Breast Milk Storage Bags Buying Guide

What to look for when Choosing Breastmilk Storage Bags

There are a few important things to consider when you go to choose the best baby milk storage bags for milk storing. It is important to make sure they are safe to use for your baby, as well as whether they will remain intact whilst being stored in the fridge or freezer.

As well as those, you also need to consider the cost of buying the storage bags to save your many ounces of milk, how much they store and what your breastfeeding routine will be like. Here are the key things to look out for.

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Safety of Materials

The bags should always use food-grade safe materials. Ideally, you also want bags for storing breast milk that are BPA, BPS and phthalate free. This stops harmful chemicals from leaking into the breastmilk that your baby drinks. The bags also need to come pre-sterilized to ensure they are completely free of contaminants. Keep your surfaces and baby clean with these wet wipes!

Even with all this, we suggest checking the bags before using them as mistakes can occur in the production process. Reviews will let you know if this is a common issue and which breast milk storage pouches to avoid.

Durability

Pumping breastmilk takes a lot of effort, and the last thing you want is for it to end up all over your fridge or freezer. Check what features the bags have to make them spill proof – be it a double locked seal, reinforced sides or special materials. Again, reviews will let you know how reliable the bags really are.

Price

The bags are not reusable and breastmilk cannot be refrozen once defrosted. You should not compromise too much on price as cheap but ineffective bags will only cost more in the long run. Nevertheless, do consider that you will likely need a few hundred of them if you pump and save breast milk often and that costs can add up.

Size

This will change as your baby grows, but if you plan on freezing the bags you should only be storing milk to the amount your baby can consume in one go. This is because they cannot be frozen. Likewise, it can be awkward trying to feed your baby with multiple bags for storing milk so older babies will require bigger bags before moving onto baby food. Make sure you grab one of these great baby food makers for when your baby is eating foods.

Check out how much the breast pump bags store and if there are different sizes of the same product available so you can consistently use the same bags throughout. Also check how reliable the measurements on the milk pouch are – reviews will help with this.

Breastfeeding routine

If you plan to mostly breastfeed directly, you will not need as many storage bags for milk storing and pumping – it is likely you will freeze more often. If you plan on solely using pumped breastmilk, you will need more bags and the ability to store them in both the refrigerator and the freezer.

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Bags that stand up are best for the fridge and bags that lay flat is best for the freezer, so you may need to consider bags that can do both. Again, it is also likely you will need bigger bags if you continue to breastfeed for most of the first year. Remember: Freeze flat and refrigerate up!

How to use Breastmilk Storage Bags?

This varies slightly from bag to bag. Generally, you will need to pour breast milk into the breast pump bag after pumping. You can then seal the bag and pop it in the fridge or freezer. Always make sure you remove air from the bag before sealing it. This is in case it expands in the freezing process and also minimizes contamination risks. You can get breast milk storage pouches with spouts, making them easy to pour breast milk.

You should write the date of expression on the bag and the date of expiration. If your baby goes to a daycare center and you plan on giving them the breastmilk bags to feed your baby, we suggest putting their name on the bag too to prevent mixups. Some bags for storing milk have attachments which mean you can pump straight into the milk pouch.

This can make the process far easier and prevent spillages. There are also storage pouches for storing breast milk that have attachments for baby bottles, meaning it is possible to express, store and feed using a single milk pouch. These are great options for working mothers who need to save time.

You should also never reuse breastmilk storage bags for pumping. They are pre-sterilized before you purchase them, but they cannot be sterilized again. It is not hygienic to reuse the bags and can risk your baby’s health. If you are using them for the first time, you can purchase a breast milk bag starter kit.

How many Breastmilk Storage Bags do I Need?

This depends on how long you plan on using them and how much your baby drinks in one day. Bags for storing breast milk cannot be reused, and you can’t refreeze breast milk, so it’s best to have a little bit too many. In one year, a mother who mostly breastfeeds directly may only go through 50, whereas someone who exclusively uses electric breast pumps might go through 500.

It really depends on how you plan to feed your child and how much milk you can produce in one sitting. We recommend getting a larger pack of around 100 to begin with and keeping note of how quickly you get through them.

How to Get Air out of Breastmilk Storage Bags?

For storage pouches with a zip-lock function, the easiest method is to seal the bag most of the way and leave a slight gap at the end. You can then slowly push all of the air out of the milk pouch, and then seal it entirely. If it has a screw top it is easier. You simply squeeze until the milk is reaching the top and screw the cap on. Some bags for storing breast milk have a twist cap, which is especially handy when you are trying to multitask. The twist cap feature is usually baby proof.

Conclusion

In general, safety comes first so always check these features first. Your breastmilk storage bags should be FDA approved food-grade plastic bags, and they should be free from BPA, BPS, and phthalates. It is also important to check if they are sturdy enough to be frozen and warmed. You need plastic bags made of thicker plastics and with reinforced sides to ensure maximum security for your breastmilk.

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Breastmilk storage pouches can make your life easier when breastfeeding a baby, so make sure you get the best product for your needs and enjoy the added freedom they can provide.

Expert tip

Always check out the reviews of the breast milk storage pouches at the bottom to make sure the claims made by the manufacturer are accurate. Most brands have occasional issues with measurement sizes and durability, but if it’s a recurring issue it is best to avoid them altogether. If there are any issues with hygiene or safety, we also suggest you err on the side of caution and look at other brands.

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