DO BOT BUY!
These are the absolute WORST milk bags! They’re are so flimsy that they don’t allow you to pour the milk out of them without it caving/bending. I lost 3oz of breastmilk. For a “just-enougher” that is devastating. Do better Lansinoh.
Milk Storage Bags
$
14.44
$
16.99
Free shipping & returns for Babylist orders $45+
FSA & HSA Eligible
1
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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
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Q&A
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Customer reviews
130 Ratings
Customer Photos
1-10 of 130 Reviews
DO NOT BUY!
Jul 20, 2026
FAVORITE freezer bags
Love how good these freeze and how much you can put in them. These are the best freezer bags. I have only had them leak once out of hundreds of bags I’ve used!
Jun 3, 2026
They’re okay
These milk storage bags are just okay. Not my preferred option when it comes to freezing breastmilk because of the closure system. When the milk thaws too pouring from the top is somewhat challenging.
Jun 3, 2026
Leaking
I need to leave this review … i thought they were the best but I have lossss a lot of my breast milk cause when they defrost they leaked. 😞
May 30, 2026
LEAKS
I used these bags to store breast milk while exclusively pumping for five months. As an oversupplier, I had a significant amount of milk to freeze, and initially, I had no issues filling or storing the bags.
However, now that I’ve begun using the frozen milk, I’ve discovered that many of the bags have developed holes and are leaking. This is incredibly disappointing and unacceptable, especially considering the time, effort, and care that goes into pumping and storing breast milk.
The loss…
However, now that I’ve begun using the frozen milk, I’ve discovered that many of the bags have developed holes and are leaking. This is incredibly disappointing and unacceptable, especially considering the time, effort, and care that goes into pumping and storing breast milk.
The loss…
May 13, 2026
Leaks
I’ve lost at least 8 oz due to them leaking, it’s super frustrating cause I try to make sure that the seals are locked but once I put them in the fridge they leak everywhere.
Mar 29, 2026
No adapter needed with my Spectra
These bags are great for storing my expressed breast milk while I'm at work. They fit on my pump flange perfectly without needing an adapter. The only downside is that some of them leak just a little bit. So I freeze them in a standing position instead of flat.
Mar 18, 2026
Poor quality
Just started pulling my freezer milk out and 3 of the 5 bags are broken.
Mar 15, 2026
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
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
