Zip Top Breast Milk Bag 6-Set + Freezer Tray
Sturdy reusable silicone milk bags with a tray, held back by small capacity and an imperfect seal.
The short version
- Parents who pump and store milk often and want to cut down on disposable bags
- Households with room to keep bags upright in the fridge or freezer
- You need to freeze milk flat or store large volumes in a small freezer
- You want bags that seal fully against tipping
- You only store milk now and then; disposable bags cost much less
What owners like
- Thick one piece silicone that is hard to rip and survives rough handling
- Open shape with no tight corners is easy to wash
- Made in the USA from platinum silicone
Common complaints
- The zip seal is not airtight, so liquids leak if a bag tips over
- Expensive compared with other silicone storage and with disposable milk bags
- Silicone can hold onto some odors and stains after washing
Based on Zip Top's product page and its breast milk storage article, the Amazon listing, and a Prudent Reviews long term review of Zip Top's silicone containers. The Prudent Reviews themes cover the Zip Top line in general, not the milk bags specifically; no independent hands on review of the milk bags could be found..
Research scores
Scored from the maker's specs and what owners report. Drew's own notes and photos will refine these.
Ownership
Drew's hands-on notes for this product are on the way. Long-term updates will be added to this timeline.
What it does
Six reusable 6 oz platinum silicone breast milk storage bags with zip tops, plus a freezer tray to keep them upright and organized.
- Bags stand up and stay open for filling, then zip shut
- Pour corners for moving milk into a bottle
- Surface you can write the date on
- Freezer tray holds the bags upright and organized
- Reusable, so it replaces disposable milk bags
A fit for parents who store milk regularly and want to stop buying disposable bags, and who can keep bags upright in the fridge and freezer. The trade-offs are cost and capacity: six 6 oz bags cost far more up front than a box of single use bags, and Zip Top's zip seal is not airtight, so a tipped bag can leak.
How it compares
Specs
- Includes
- 6 bags and 1 freezer tray
- Capacity
- 6 oz (177 ml) per bag, with a max fill line
- Material
- 100% platinum silicone, one piece with no glue (maker)
- Free of
- BPA, lead, PVC and phthalates (maker)
- Care
- Dishwasher safe; sterilize by boiling the empty bag or microwaving it part full of water (maker)
- Made in
- USA (listing)
Worth knowing
- Zip Top says not to fill past the max line on the back of the bag.
- Zip Top says to squeeze out excess air, zip the bag closed and always store it upright.
- Zip Top says not to warm breast milk in boiling water or the microwave, to always check milk temperature before feeding, and not to refreeze breast milk.
Questions
How much does a Zip Top milk bag hold?
6 oz (177 ml). Zip Top says not to fill past the max line on the back of the bag.
Can you warm milk in a Zip Top bag?
Zip Top's own storage guide says to thaw the bag upright in warm water or in the fridge overnight, and not to warm milk in boiling water or the microwave.
How do you sterilize Zip Top milk bags?
Zip Top says to boil the empty bag for 5 minutes, or fill it half full of water and microwave on high for 2 minutes. The bags are also dishwasher safe.
Do Zip Top bags leak?
Zip Top tells owners to store bags upright, and a long term review of Zip Top containers found the seal is not airtight, so liquids can leak if a bag tips.
Sources
- Breast Milk Bag 6-Set + Freezer Tray (Zip Top)
- Breast Milk Bag 2-Set (Zip Top)
- Reusable Breast Milk Storage Bags (Zip Top)
- Zip Top Reusable 100% Platinum Silicone Breast Milk Storage, Bag Set of 6 + Freezer Tray (Amazon listing)
- Zip Top Containers Review (Prudent Reviews)
- The best breast milk storage bags, ranked (Romper)
Researched 2026-10-02. We bought this product; our page is built from the maker's details and what owners report across reviews and forums. We never copy Amazon customer reviews.
