Here's why it changes everything for breastfeeding moms
If you know us, you know we're always asking one key question: how can we make life easier and safer for our incredible Ceres Chill moms?!
Every design decision we make comes from real experiences, busy mornings, long workdays, airport delays, pumping at the office, and every moment in between. We know you need something that actually works, without adding any extra stress (because seriously, we already have enough!).
Which is why we made so many updates to our OG+...especially our new Freezable Inner Chamber 😍
What Makes the Ceres Chill Inner Chamber Different
It was built directly from feedback from real moms. (Yall are the real MVP)
Our new freezable chamber eliminates the need for ice or ice packs completely. Prep it ahead of time in the freezer, screw it into your OG+ (it also works with your Legacy Chiller if you have one), and you are ready to take on the world. No prep and no headache!
The inner chamber can work in two ways: to store your breastmilk if you're doing the 28 ounce method, OR to work as the world's greatest ice pack. Either way, it delivers!
The Problem with Traditional Ice Packs for Breastmilk Storage
Chemical freeze packs are often filled with unknown gels and chemical-based cooling agents. Even when labeled "non-toxic," many still rely on materials that moms understandably feel unsure about.
They also have a limited storage time (4-8 hours) and can only chill a certain amount of milk per ice pack.
You should not have to accept subpar options...but that's where we come in.

How a Stainless Steel Frozen Core Keeps Breastmilk Cold Longer
Our Chiller is built differently. Instead of chemical gels, we use a food-grade stainless steel core that can be frozen or filled with ice.
Having the option to do either one is what gives you true flexibility - if you ever face unexpected delays, a 24-plus hour flight hold or a day that ran way longer than planned, ice is available everywhere. You can always add it to keep your milk safe when you need it most.
Here's why materials and science matter:
When water freezes, it stores a significant amount of thermal energy. As it melts, it absorbs heat slowly and consistently, which means it does not just cool quickly. It stays colder for longer.
Solid frozen water also outperforms most traditional gel packs when it comes to sustained cooling. Gel packs are designed for flexibility, not maximum thermal retention. A solid frozen core maintains a consistent, powerful chill throughout your day.
Add stainless steel into the equation and you get a material that enhances both temperature transfer and retention. The result is faster initial chilling and longer-lasting cold storage for your breastmilk or formula.
A Breastmilk Storage Solution That Is Free from Harmful Chemicals
The Ceres Chill Chiller is intentionally designed to be free from toxins, with only the BEST materials used:
- Food-grade stainless steel
- Premium silicone
- BPA-free plastic

No questionable materials. It's a breastmilk storage option that meets the safety and transparency standards modern moms expect and deserve.
Better for Your Family and Better for the Planet
Because the Chiller is fully reusable and built to last, it's also a more earth-friendly choice. By eliminating the need for single-use or plastic-heavy ice packs, you're reducing waste while getting better performance. That's a win-win!
Breastmilk Storage Should Never Mean Choosing Between Safety, Convenience, and Performance
This is what innovation means to us: replacing outdated, questionable solutions with something better, something safer, simpler, and more effective.
Moms absolutely deserve the best, always.
Our updates are not just about keeping milk cold. They're about giving you peace of mind, removing unnecessary steps, and offering a cleaner, higher-performing option.
For information on upgrading your current inner chamber for our Freezable Inner Chamber, please send us an email to info@cereschill.com! Our team of moms is always here to help ❤️