Breastmilk Storage Bags 100 ct

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Lansinoh's #1 selling breastmilk storage bags are ideal for storing and freezing precious breastmilk. Lansinoh bags come pre-sterilized and have a patented double Click ‘n’ Secure™ seal to prevent leakage. With reinforced side seals and a double-sealed gusset, Lansinoh bags are the strongest breastmilk storage bags available. BPA and BPS free.

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Lansinoh's #1 selling breastmilk storage bags are ideal for storing and freezing precious breastmilk.

  • Ideal for storing & freezing breastmilk
  • Reinforced side seams
  • Convenient pour spout
  • Patented double Click ‘n’ Secure™ seal
  • Bags lay flat for efficient storage and thawing
  • Strongest and largest bag available
  • BPA and BPS Free
  • Pump directly into Lansinoh breastmilk storage bags. Download instructions here!

Pump directly into Lansinoh storage bags with a Lansinoh pump

Pump directly into Lansinoh storage bags using our pump adapter 

For use with non-Lansinoh pumps. Adapter sold here.

IMPORTANT! Ensure your Lansinoh Breastmilk Storage Bag has white and purple flowers and a white line above the logo. If your bag does not have this design, it is not compatible with pumping directly into the bag.


Are your bags recyclable? Yes! They fall under the #4 recyclable category which includes bags, merchandise bags, pharmaceutical, packaging etc.

Are your bags sterile? Yes, our bags are pre-sterilized!

Can I reuse your milk storage bags? No. Lansinoh Breastmilk Storage Bags are designed for one-time use only.

Can I freeze your milk storage bags multiple times? No. Our bags are intended to be used for a single freezing only. They should be disposed or recycled after they are used.

What is the best way to store milk storage bags—in another bag, in a Tupperware® container, freezer bag? We recommend lying the storage bags flat to freeze them. You can put the breastmilk storage bags directly into the freezer but because plastic can sometimes stick to the freezer rack (especially if it is even slightly wet), we recommend placing the bags in some type of container or even a freezer Ziploc® bag.  That will also protect the bags from contact with other frozen items.

How do I thaw my milk if frozen in your bags? The thing to remember when thawing your milk is to handle it as gently as possible to preserve all the valuable nutrients.  Breastmilk frozen in our bags can be thawed in the refrigerator or at room temperature.  You may also place the sealed bag in a bowl of warm tap water but never use extremely hot or boiling water on a stovetop.  Very importantly, do not microwave the milk to defrost as this process may destroy nutrients in your milk and create “hot spots” that would be dangerous to your baby.  We recommend freezing your milk by laying the storage bag flat because it makes the thawing process quicker and easier. 

Can I microwave my milk while it is in your bags? No, microwaving is never recommended for breastmilk as it destroys valuable nutrients and vitamins in the breastmilk. Additionally, it can create dangerous “hot spots” that can burn the baby when you are feeding the milk to him or her.

I am planning on having another little one. Do your milk storage bags expire? As long as they are stored in a cool dry place, like a cupboard or closet, they will be perfectly fine to use with your next little one. Please just be aware that older Lansinoh bags were not designed for pumping directly into them.


Shipping Charges

Shipping options are provided at the time of checkout. We offer Standard and Express shipping.

We ship to all 50 states, U.S. Territories (Puerto Rico, Guam, Northern Mariana island, U.S. Virgin Islands and American Somoa), and military bases (FPO & APO).

Ground Shipping:
Free ground shipping on orders over $25.
$5 Shipping charges on orders less than $25.
Actual charges are displayed in checkout.

Express Shipping:
$15 - 2-Day Shipping - Orders shipped Express are delivered via UPS 2nd Day.
$20 Overnight Shipping (next day)

All orders must be places by 1 PM for expressed shipping.

Canada & International Shipping:
We currently do not ship to Canada or other international locations.

Shipping Carriers

The carrier we use for Standard Domestic is USPS and United Parcel Service (UPS) for Express Shipments.

Delivery Information

Lansinoh ships most order within 1 business day of receipt. Shipping options are provided at the time of checkout.

Next-Day shipping is available. Next-day rates will be calculated at time of checkout. All expedited orders ship on the next business day.


This policy applies only to products that were purchased on Products purchased from other retail outlets must be returned to the original place of purchase, per that retailer's return policy.

Lansinoh products are personal hygiene items, and cannot be returned unless they are new, unopened, unused, and in the original packaging. Products can be returned to Lansinoh for exchange, or refund within 60 days of the purchase date. The cost of the original shipping is not refundable. Please contact our customer care team at 800-292-4794 or for complete instructions on product returns.

For items purchased at stores, please contact the store where the purchase was made to review their refund policy.