Coffee | One Roast at a Time
Home roasting, learned slowly.
Real roasts. Careful notes. Useful tools. No theatre.
A practical coffee project built around the Gene Café CBR-301, repeated roast records, plain-English observations, and the cup result that follows.
Start where you are
The site is built as a working notebook, not a course. Choose the doorway that matches what you need today.
New here?
A calm introduction to the project, the machine, the notes, and the way the evidence is handled.
Read the guide
The main patterns that have held up across repeated roasts, written as working guidance rather than fixed rules.
Use the tools
Upload Gene Café JSON exports, compare roasts, plan cautiously, and keep the learning loop tied to weight loss and cup result.
Around the Bean
Curated coffee signals from crop to cup, with context instead of noise.
The working loop
Plan → Roast → Weigh → Brew → Taste → Decide
The roast data helps, but the cup closes the loop. This project uses repeatable anchors like batch size, start state, total roast time, temperature milestones, fan behaviour, weight loss, and tasting notes to decide what to try next.
Latest project thread
Machine-state story
From Roast 120 to Roast 148
The project has moved beyond individual roast notes into a wider story about machine state, repeatability, tools, listening, and what changed after another heater failure.
What you will find here
Roast notes
Real roast records, including what happened, what seemed to matter, and what remained uncertain.
Videos
Longer explanations, practical examples, and project updates from the Coffee | One Roast at a Time YouTube channel.
Reflections
Longer notes on taste, learning, uncertainty, tools, and the wider coffee story.