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Milk Storage Bags

Rated 4.1 out of 5
122 Reviewsor
$
14.99
$
16.99
12% off
Free shipping & returns for Babylist orders $45+
FSA & HSA Eligible

FSA & HSA Eligible

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Overview

Description

Lansinoh Storage Bags feature a double zipper seal to prevent leakage, plus reinforced double-sealed side seams for extra protection. They’re pre-sterilized for safe storage.

To save time, you can pump directly into the BPA/BPS-free bags with a Lansinoh Breast Pump (sold separately) or use another brand paired with the Lansinoh Pump Adaptor (also sold separately).

Tip: when storing milk in the freezer, lay flat for fast freezing and thawing or stand for compact storage.

What we  about it

Pre-sterilized bags ideal for storing, freezing and protecting breastmilk.

Details

  • Each bag holds 6 oz
  • Super strong for storing, freezing and protecting breastmilk
  • Double zipper seal for ultimate protection
  • Reinforced double sealed side seams
  • Presterilized for safe storage, BPA/BPS free

More to consider

Q&A

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Customer reviews

122 Ratings
4.1out of 5
122 Ratings

Rated 5 stars by 66% of reviewers

Rated 4 stars by 10% of reviewers

Rated 3 stars by 7% of reviewers

Rated 2 stars by 2% of reviewers

Rated 1 star by 16% of reviewers

1-10 of 122 Reviews
Rated 1 out of 5
Bad seal
I loved these bags when I was filling them with milk and putting them into the freezer because of how flat they froze. I have started using that frozen milk for my almost 1 year old and I guess I got a bad batch, but I have lost 4 bags of milk in 1 day due to the seals on the side having a hole. I also can’t tell until it is thawing/thawed when milk is everywhere or gone. This is extremely frustrating because I had worked very hard pumping and breastfeeding and only had enough milk to get my
Jan 11, 2026
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Rated 1 out of 5
Leaky and low quality
At least half of the bags I had stored leak in the lower corner near the joint of the bottom and the side. I tried thawing bags upside down (with the seal down in the water to save some milk), but my baby will not accept milk from the leaky bags. The milk also smells weird on these bags that leak. I emailed customer service and they issued me a $15 amazon gift card. Nearly half of all milk bags that I’ve tried to thaw have leaked. I can’t even buy formula to replace the lost milk for that. I
Dec 16, 2025
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Rated 2 out of 5
New design loses some ease of use
The new design seems cheaper than the old. The perforation at the bags opening is flimsy and results in ripping the top of the bag when you go to pull off the seal (this never happened with the old design). Also the new bags do not sit vertically as easily when you pour milk in. I was used to the old bags which sit easily on my counter as I pour and with the new bag, it immoderately toppled over as I started pouring and in early lost 5oz!

I’m thinking lansinoh wanted to save money with the new design but have now put out a crappier product.
Dec 2, 2025
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Rated 2 out of 5
New breastmilk storage bags
We all know the feeling of spilling even a drop of milk. These new storage bags have spilled my milk twice from a hole at the side of the bags. I literally shes a tear as almost 2 ounces of milk spilled and I didn’t notice it. It’s too plasticy for me. I prefer the old bag way better.
Nov 8, 2025
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Rated 1 out of 5
Wanted to love but not the case
I bought these a week ago and I have already had milk spill 3 times they do not hold up for a second. It’s truly annoying
Sep 17, 2025
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Rated 5 out of 5
Perfect ,, definitely good quality
Aug 13, 2025
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Rated 4 out of 5
New Design Has Flaws
I LOVED the ones with the blue zipper (I believe that’s the OG design). I recently ordered more and got the new design with the pink zipper and the big Lansinoh logo flower on the center of the bag. This zipper leaks before I even get my milk in the freezer! I wish you’d go back to the stronger zipper if you’re going to change the style of the bag.
Jul 29, 2025
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Rated 1 out of 5
Terrible
They’re hard to pour milk into. They don’t stand. One fell out of my fridge due to not being able to stand and got a hole. Thawed a bag of milk and it started leaking.
Jul 27, 2025
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Rated 5 out of 5
Love my Lansinoh bAgs💕
My go-to for storing every drop 💧 Lansinoh bags are strong, don’t leak, and freeze flat—perfect for building my stash! 💜
Jul 23, 2025
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Rated 5 out of 5
Favorite and Most Durable Storage Bag
I have used this brand for my breastmilk storage for YEAAARSS. Never have I had an issue with spilled milk or nothing. I’ve kept my breastmilk for up to a year, that I had saved for breastmilk baths for my kids and the bags condition was still excellent. Definitely helps with keeping your milk flat and having enough storage.
Jul 7, 2025
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