be chill logo

The Progress

The be chill Blog

Everything we're learning while building the case: prototypes, material tests, and the honest bits in between.

The be chill founding team

July 2026

Proof of concept. We boiled water to melt and set our phase-change material, then sealed small pouches to see how much heat the material could absorb. Messy kitchen, promising results. We also got Korean BBQ and the CMO accidently sprayed the CTO's shirt with oil. Team bonding.

Melting and setting phase-change material on a kitchen stove
Prototype batch one: setting the phase-change material by hand.
Fitting a prototype cooling pouch to the back of a phone
Putting the first bag on a phone for a real-world heat test.