The 5 Best Breast Milk Storage Bags on the Market (2020 Reviews)

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5 Best Breast Milk Storage Bags to You in 2019

You did it! It hasn’t been an easy road but you finally managed to overcome and conquer your unnerving breast pump. Not only you are a milk producing machine, but you’ve become the primary source of life for your new baby. I hope at some point; you’ve taken the time to admire the liquid gold you’ve created. I’m sure it feels like you just won the lottery!

Now that you are at this point in your mommy career, let’s think safety. The last thing you want is all your hard work going to waste. So, what are you going to store your milk in to keep it safe and fresh?

You may have looked at a few options already, such as glass bottles, plastic containers, Tupperware and maybe even Ziploc bags. I mean, if a Ziploc bag keeps its contents fresh, why not breast milk? Let’s take a deeper look as to why this may not be the best option and what you can use instead.

Now that we’ve touched on the topic of Ziploc bags, you may be wondering if this option is your best choice. Nevertheless, it would most certainly be easier. They are fairly inexpensive and readily available in almost every store you go to. However, here are a few reasons why you may want to re-consider using Ziploc and go for the best breast milk storage bags.

  • If you do not want to spend valuable time cleaning spilled breast milk off your countertops and floors, then Ziplock bags would not be your best option.
  • The risk of your baby becoming ill from germs decreases dramatically when you use breastmilk storage bags. They are durable, BPA free and sterilized to prevent harmful bacteria from contaminating the milk. Freezing your breastmilk bags and thawing them are much easier too.
  • Breastmilk storage bags makes it easier to pour your milk directly into a bottle. Some already have a spout built in for easy pouring.
  • Make sure not to confuse breastmilk storage bags with bottle bags. Bottle bags are designed for feeding your baby and are much flimsier. They are not suggested for keeping milk and should only be used inside the bottle.

Best Features Of Breast Milk Storage Bags

  • Resilience& Size: Breastmilk storage bags are very durable and come in a variety of sizes. If your baby is less than a few months old, you'll want to select a tiny bag that hold up to 4 ounces.
  • Material& Usability: Storage bags are made of healthy BPA-free plastics as well as recycled material. They are very easy to use and have durable seals.
  • Adapters: Adapters are a handy little device that connects your breast pump directly to the storage bag. Sometimes you may have to use the same brand in order for it to connect properly. However, there are some universal adapter you can purchase so you don’t have to spend additional money.

The 5 Best Breast Milk Storage Bags Of 2020

There are a lot of points to think of when you begin breastfeeding. Much more so when you take into consideration adding a breast pump to the mix. Ensuring your child is secure and feeding until their heart’s content is important to you. Make sure you take notice of your baby’s latch and attempt to avoid the painful reality of dry, cracked nipples.

As a mom, we tend to worry about our new baby a lot.  So, the less you need to worry about, the better. A bag that’s tough and also functional is what you should be after.

Lansinoh Breast Milk Storage Bags - The 5 Best Breast Milk Storage Bags on the Market (2020 Reviews)Firm Favorite

The last thing a pumping mama wants is to have to clean up after spilled milk that is in a container that claims to have a no-spill sealing capability. When it comes to milk storage bags, it’s best to go with the firm favorite.

The Lansinoh Breast Milk Storage Bags are the number one seller for breast milk storage bags, and there’s plenty of features to back it. Each storage bag comes pre-sterilized and is designed with a double zipper seal that guarantees no leaks. Most companies would stop there, but they wanted to be so confident in their product, they created reinforced double-sealed side seams to protect your milk without a doubt.

These bags will save you so much time and frustration because you won’t have to pick up after them. Hello, you already have a baby to clean up after- your products need to be in your favor!

Not only will you stop wasting time on messy leaks, but the Lansinoh bags also have a pourable spout that helps to transfer the breast milk into your baby’s bottle without spilling a single drop.

The bags are intended to lay flat in the refrigerator or freezer. You can attach your Lansinoh pump directly to these bags or purchase an adapter if you pump with a different brand. It’s safe to say these bags have got you covered.


  • Double zipper seal prevents leaks.
  • Each bag holds up to 6 ounces.
  • They are recyclable.
  • No plastic smell or taste, come pre-sterilized.


  • Opening the first time can be more difficult than other brands.
  • They aren’t intended to stand upright so pouring milk can be tricky.

Kiinde Twist Pouch Milk Storage Bags - The 5 Best Breast Milk Storage Bags on the Market (2020 Reviews)Boob to Baby

These multi-purpose bags are an excellent choice for the impatient mom. These “bags” can also serve as a bottle. What? Yes, once you’ve pumped directly into the bag because it’s compatible with all leading breast pump brands, you have the choice to twist a cap onto it and freeze it, or you can feed your child right then and there.

The can purchase the additional nipple attachments and twist one on and serve your baby a bottle with the same “bag” you pumped in. Talk about convenient.

If you’re the kind of mom who values convenience above all, these nifty bags might be for you. Halfway between a bag and a bottle, these pouches come with a twist cap that attaches to most breast pumps and the brand’s own bottle converter. There’s no pouring, no transfer, and no measuring with the “boob to baby” system!

Not only will you free up more time and carry around fewer products, but you’ll also reduce the opportunity for bacteria to access your milk since there’s no transfer! Win, win if you ask us.


  • The bags are recyclable.
  • Compatible with all leading breast pump brands.
  • Seals with cap which prevents leaks and spills.
  • Collect, store and feed all with the same pouch.


  • Bags don’t lay flat which makes it more difficult to store away.
  • Only one size available.
  • More expensive when you buy the whole kit.

Medela Breast Milk Storage Bags - The 5 Best Breast Milk Storage Bags on the Market (2020 Reviews)Perfect for Transporting

All moms are on the hunt for the most efficient type systems because well, you’re busy! Fewer transfers and fewer products, the better! If this sounds like you, then you’ll love the Kiinde Twist Pouch.

Is your family always on the go? Traveling and breastfeeding can be intimidating to some moms, but when you have the right products, it’s just as relaxing as your destination spot!

The Medela Breast Milk Storage Bags are the best choice for traveling moms. The bags are made with a double-layer material that is proven to be highly durable, along with a built-in double zipper seal that prevents any leaks or spills. No matter how much your milk is getting thrown around during your travels, these bags refuse to leak!

The bags can lay flat to save space, hold six ounces of milk, and each box comes with 100 bags!

It’s like Medela made these storage bags from travel because they come with a resealable transport pouch! This allows you to keep your process clean and organized, which is definitely a mother’s dream.


  • Double layer material and double zipper seal to ensure zero leaks or spills.
  • Perfect for travel
  • Includes resealable transport pouch.


  • Can’t feed directly from the storage bag.

Mommy’s Precious Breast Milk Bags - The 5 Best Breast Milk Storage Bags on the Market (2020 Reviews)Cutest Design

Design matters, right? If you’re a super trendy mom, then you’ll love these storage bags by Mommy’s Precious.

Mommy’s Precious Breast Milk Bags might be the cutest on the market, but that’s not all they have going for them! Each bag is BPA, latex, and phthalate-free. Safety comes before cuteness, so we’re glad to hear they got that part covered.

Each bag is locked with a double zipper and hold up to eight ounces. When you’re limited to only one of your hands, don’t fret. These bags can stand up all on their own. Although, they still freeze flat because the bottom is gusseted, so it evens out when flat.

One thing that Mommy’s Precious is passionate about is accurate measurements. The cute design serves a purpose with giving 95 percent exact measurement lines for the mamas who are keeping track of their baby’s feedings.


  • 95% accurate measurements designed on each bag.
  • Safety seal protects milk against bacteria.
  • Holds up to 8 ounces.


  • Tricky to open for first-time users.

NUK Seal ‘N Go Breast Milk Bags - The 5 Best Breast Milk Storage Bags on the Market (2020 Reviews)No Leaks

There’s something all mothers seek in their milk storage bags, and that’s a leak-proof capability. With the NUK Seal ‘N Go Breast Milk Bags, you are guaranteed a 100 percent leak-proof experience.

These bags are designed with a double zipper seal and a rounded bottom to prevent any corner leaks. Each bag comes pre-sterilized and includes an improved oxygen barrier to ensure freshness during each pour.

Speaking of pours, the bags come with a no-mess pour spout that helps to prevent spills during transferring. They are BPA-free, freezer-safe, and hold up to six ounces of fresh milk. If you’re worried about leaks, these are the storage bags for you.


  • Easier to remove air bubbles unlike other storage bags.
  • The labeling section is on the tab rather than the bag itself.


  • Might struggle with staying upright since they are so thin.
  • Tend to have a strong plastic-like smell when first opened.

Related Reading

What About Cheap Plastic Bags?

When shopping for breastmilk storage bags do not compromise quality for cost. Find the best quality bags you can at the price you can afford. Ensure the ones you select meet your needs and fulfill the supply on demand. The last thing you need is a bag failing on you.

Depending on the features, several of them have functions that make breastmilk storage bags far better than others. This is why you should think about selecting quality storage bags over inexpensive, inferior brand names.

How Do I Properly Use My Breastmilk Storage Bags?

To ensure proper usage of your storage bag, make sure you wash your hands thoroughly and provide yourself with a sterile space to work in.  When I handled my breast milk, I wiped down my kitchen counters with Lysol and steam cleaned my containers. Much like you would do before preparing a meal for your family.

After you’ve pumped your milk, put it in a storage bag and decide on whether you want to freeze or refrigerate your milk. Make sure you eliminate excess air before sealing your storage bag.

You could be tempted to pack as much milk into one bag as you potentially can. Avoid this at all costs. Only put as much milk in one bag as you believe your child will consume in one feeding. Some bags are marked to indicate the amount of milk they can hold.  My storage bags were able to hold up to 10 ounces of breast milk. If I decided to freeze my supply, I only filled my bags with nine ounces of milk.  Leaving ample space for the milk to expand when frozen.

I strongly encourage you to take copious notes on how much breast milk your baby is able to consume. If you pour eight ounces of breast milk in a bottle and your infant only consumes four ounces, you’re in for a major disappointment. As soon as your baby starts feeding off the bottle, any type of additional breast milk leftover will need to be discarded. Once your baby’s saliva has come in contact with your breast milk, it cannot be refrigerated again.

If your infant needs more than you have actually offered in one bag, you can include more milk in another container from an additional bag. Then you can reseal that bag as well as put it in the fridge once again until you need the rest of it.

Breast Milk Storage Guidelines

  • Make sure you store your breast milk in the refrigerator if you are not going to use it right away. Your milk should be stored in breastmilk bags or specifically designed glass containers.
  • Babies under two weeks old demand two to three ounces of milk per bag.
  • Older infants require around three to four ounces of milk per bag.
  • After you’ve thawed your breast milk, you can keep it refrigerated for no more than one day.
  • Breast milk should never be placed back in the freezer once thawed out.
  • Keep in mind that warmer milk has a shorter lifespan. Dispose of any breast milk left over after feeding your baby.
  • Once your baby is three months old, they can have cooled milk. But until then make sure you warm it before feedings.

Which Bag Is The Freshest?

In order to provide your baby with the freshest milk possible, you can write the day and time you pumped your milk directly on the storage bag. If your unorganized refrigerator is anything like mine, it’s simple to lose track of which bag is the oldest.  So, I speak from experience when I say, “Write Down Everything”. It’s a simple action that takes the uncertainty out of breast milk storage. Remember, we want to worry less and do more.

If you’re preparing your best breast milk storage bags for daycare, I recommend you thaw out the milk you know your baby will consume for the week. Write their name, number of ounces and date on the front of the bag or bottle. I found it easier to pour my breast milk straight into a bottle and add the label. I didn’t want anyone else handling my breast milk. This way the risk of contamination stayed low and there was no question as to who it belonged too.

Simply get a marker as well as compose infant’s name on any kind of bags you’re taking outside your home, and the trouble’s solved.

Breastmilk Storage Bags FAQs

Can You Recycle Breast milk Storage Bags?

Breastmilk storage bags are not designed for multiple usage. Once you use them you should throw them away. Don’t try to wash and re-use them, as they will no longer be clean and sterile. It isn’t worth the risk of endangering your child simply to conserve a couple of dollars.

How Long Can I Keep Breast milk In The Freezer?

After pumping, you can store freshly expressed milk in the deep freezer for up to 12 months. However, I highly encourage you to try and use your breast milk within 6 months.  Just keep in mind that the longer you store your milk in the freezer, the greater loss of vitamin C.  It’s also important to know that as your baby grows, the nutrition in your milk changes to meet their needs.

Here Are A Few Guidelines That Should Help You:

You can safely leave breast milk on the counter, completely unrefrigerated for up to six hours if the temperature in your house is set to 77 degrees Fahrenheit or cooler. When saved in the fridge, you can maintain breastmilk for up to five days.

Now, when it comes to freezing your milk, I recommend placing it in a deep freezer rather than the freezer area of your refrigerator. This will allow your milk to stay fresher longer.

How To Unfreeze Breast milk?

If you have the time, I recommend thawing your breast milk in the fridge.  This process can take about 12 hours. You can also thaw by running it under warm water while it’s still in the storage bag. Never ever heat up the breast milk storage bag in the microwave. If I needed to thaw my milk in a hurry, I used my bottle warmer. I simply placed the breast milk storage bag in the bottle warmer and turned it on low. It thawed much faster than placing it under warm water from the sink.

How Long Is Breast milk Good After Defrosting?

After you’ve thawed breast milk, it can last as much as 24hrs, if maintained in the refrigerator. Remember to thaw the oldest milk initially. This will keep you from wasting any breast milk.

How Can You Tell If Breast milk Is Spoiled?

Every mama is scared of giving her child spoiled breast milk. By paying close attention to the marked days on your storage bags and any weird scents, will help you determine if you have spoiled milk. It’s better to toss the milk in question and pump again if needed.

How Many Bags Will I Need?

Every woman’s milk supply is different. Nursing does take some practice; however, the objective is to at least a week’s supply of feeding. You can then pump once more to restore the shop as you go.

If you’re starting out, start with around 30 bags and adjust as you obtain a far better concept of your pumping routine. Some females pump every early morning for that exact same day. Others will have excess milk once they go back to function and will put everything straight right into the fridge freezer.

Can You Store Warm Breast milk In Storage Bags?

Room temperature level or body temperature milk is usually best for babies. Defrost frozen milk in the fridge before making use of. Chilled milk can be warmed by putting in a dish of cozy water (regarding 99 Fahrenheit) before gently swirling to mix.

Conversely, a bottle warmer can do the technique. Whatever you do, maintain breast milk out of the microwave as well as don’t boil it, or you risk damaging the milk’s nutrients or hot your baby.

How Do I Label My Breast Milk Bags?

In my experience, some bags were very difficult to write on because of the material it was made out of. A regular ball point pen was the worst thing to use. Then I realized that a sharpie worked just fine. There are lots of fun labels you can use too.  If you have a creative side, you can organize your bags by color-coding them with fun stickers, paper clips and different color markers.


In spite of our best efforts as mothers as well as protectors of breast milk, spills and leakages are bound to happen. You should choose the best breast milk storage bags for you, I remember knocking over a full bag of breastmilk once. It was devastating. No matter the type of storage bag you choose, the ones with pourable spouts and a double zipper seal are the best. They are user friendly and keep potential spills and leakage low. Some of them hold a lot of milk, which is nice for when your baby is very hungry. Pick a bag that best suits your needs and your baby’s needs. Good luck and happy storage bag hunting!

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