Micro-roasting lab counter with green beans, roast logging tablet, scale and sample roaster

Ratio // Roasters

Coffee, reduced to its // ratio.

We source transparently, profile methodically, and roast on-demand — clarity in every cup, shipped fresh to your doorstep.

The roastery

Three steps, repeated until it is exact.

Read the brew guide

01

Sourcing

Direct relationships with producers, full traceability on every lot we buy.

02

Profiling

Sample roasts and blind cupping until the curve serves the origin, not the habit.

03

Precision roasting

Logged airflow and temperature on every batch, roasted to order and shipped in 48 hours.

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“Coffee is a study in variables. We refine the science, so you can enjoy the pure expression of terroir.”

— RATIO // ROASTERS — PRECISION ROASTING