Our product line
COFFIRE
Biofuel made from used coffee grounds, in different shapes and sizes for different needs.
Spentra Materials Brewed once. Built again.
We're a San Jose materials company. We turn used coffee grounds into useful products, starting with COFFIRE.
What we do
We work with what's left after coffee and turn it into things people can use.
Start with what's spent
Cafes, coffee shops and offices have used coffee grounds every day. We partner with them to recover it.
Make it a material
We turn the grounds into a material we can build with.
Build useful products
COFFIRE biofuel is our first product line.
For cafes, offices and organizations
Partner with us
Have used coffee grounds every week? Cafes, coffee shops, office kitchens and corporate cafeterias can work with us.
Our story
We started as two San Jose roommates, Khush and Dhru, brewing coffee at home together.
Read our story