Matein steeps every grain in real yerba mate — an earthy, energizing pantry staple for cooks who like dinner to hit different.
A founder promise
Matein is a brand-new label out of a small kitchen. Until we have customers, we'd rather show you what we'll never compromise on.
We steep whole-leaf mate into the rice. No syrups, no "natural flavor."
Long-grain rice. Yerba mate. That's the entire label, front to back.
Every bag carries the date it was infused. If it sits, it gets pulled.
Don't love your first bag? Email us. Keep the rice. Get your money back.
Why Matein
We treat rice like the canvas it is — and then we paint with mate. The result cooks like rice, eats like rice, but lingers like a good cup of yerba.
Long-grain rice is rested in steamed yerba mate, slow-dried, then sealed. The leaf's bitterness mellows into something smoky and savory — a base note that lifts everything from chimichurri bowls to plain butter.
01
Steep
Whole-leaf mate, 90°C bath.
02
Rest
Grains soak 6 hours.
03
Cure
Air-dried, hand-bagged.
By the grain
42mg
of naturally occurring caffeine per cooked cup — roughly half an espresso.
Stir-fries, burrito bowls, congee, paella. Same 2:1 ratio. New attitude.
Launch list
Limited first batch. Free shipping over $40. Cancel the list any time — we only email when the rice is ready.