Freeze your milk. Ditch the plastic.
We're developing single-use, stackable molded-fiber containers for frozen breastmilk storage. They're designed as an alternative to bulky reusable containers and plastic storage bags that leave lasting plastic waste.
Planned 50-pack · 4 oz target capacity each · Planned price $69
Product design preview; final design may change.
Plastic breastmilk bags leave behind an environmental mess.
The bags we trust to store our babies’ milk can pile up by the hundreds, and early lab research shows they can shed microplastics, too.
- Centuries
- Polyethylene, including LDPE, can persist for centuries—breaking into smaller pieces, not simply disappearing.
- 730
- Plastic bags one mom could use in a year, at two a day.
- 6 / 6
- Breastmilk bag products tested released microplastics in a preliminary simulated-use study.
Your stash options, side by side.*
| Attribute | Pump For Joy Freezer Pucks | Plastic storage bags | Mason jars | Reusable silicone bags |
|---|---|---|---|---|
| Price / container* | $1.38 planned | ~$0.15 | ~$1.16 | ~$6.35 |
| Capacity* | 4 oz goal | 6 oz | 4 oz | 9 oz |
| Material* | Molded fiber + plastic-free coating | Plastic | Glass | Silicone |
| Washing | Single-use design | Single-use | Between uses | Between uses |
| Freezer space* | Disc shaped, designed to stack | Freezes flat | Round jars leave gaps | Varies |
Made for moms.
Mindful of tomorrow.
Pumping moms deserve convenience that considers life after use, too. That's why we're building plant-fiber alternatives to plastic bags and parts, without adding more washing to your day. We're designing our disposable fiber parts and coatings for composting, alongside a planned mail-in recycling program for the small silicone O-ring used to seal each puck.
Compostability has not yet been verified, and the recycling program is not yet available. We'll confirm all testing results and disposal instructions before launch.
Be first to preorder.
Launch timing will be confirmed after testing
In development, not yet shipping. Capacity, storage performance, and final design are subject to testing. Signups and preorders aren't open yet—check back soon. No details or payment are collected today.
Questions: erin@pumpforjoy.com