Milk Storage Bags
$
16.21
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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
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Customer reviews
134 Ratings
Customer Photos
1-10 of 134 Reviews
Bags leak from bottom- ruined supply
Would give zero stars if I could. These bags keep leaking when I go to defrost them (either in the fridge or with warm water). And I’m not talking about a few drops, it is pouring out of the bottom of the bag. I have to just throw away that breastmilk which is so upsetting when you’ve pumped, made a supply, & intend to use it. DO NOT buy this product.
Sep 26, 2026
Bag WILL leak
I was given some of these bags as a baby shower gift. I exclusively pump so I rely on my bags. I have had 10 bags leak. When I say leak, I’ve lost probably 50 ounces. It’s to the point that I slice them open when they partially thaw, and put the milk in a separate bottle. Don’t waste your money. These are awful.
Sep 25, 2026
These are easy and convenient to use. Easy to store in the freezer and good size
Sep 16, 2026
They leak when defrosing
These are absolutely awful and I'm completely distraught. SEVERAL bags of milk have been wasted in the defrosting process.
The bags weren't leaking when I filled them up, but apparently however they make these, the freezer makes microholes in them. I've had bags defrosting in the fridge leak all over everything in my fridge. Bags that were defrosting in water completely empty. I've froze them all flat so it isn't like there are edges that could be ripping holes in the bags. I'm absolutely livid about this and I don't think I'll ever buy and of their products again. 😭
The bags weren't leaking when I filled them up, but apparently however they make these, the freezer makes microholes in them. I've had bags defrosting in the fridge leak all over everything in my fridge. Bags that were defrosting in water completely empty. I've froze them all flat so it isn't like there are edges that could be ripping holes in the bags. I'm absolutely livid about this and I don't think I'll ever buy and of their products again. 😭
Aug 26, 2026
DO NOT BUY!
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.
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.
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
