Resources
A small collection of genuinely useful coffee resources
The free Gene Café Owner’s Field Guide, the Coffee Water Calculator and supporting references from the Coffee | One Roast at a Time project.
Start here
The two resources worth keeping close
Free Gene Café resource
CBR-301 Owner’s Field Guide
A free 53-page independent guide built from official documentation, photographs, direct observation and more than 160 home roasts.
Brewing water
Coffee Water Calculator
A practical beta calculator for building repeatable brewing water from low-mineral water and measured mineral additions.
Gene Café CBR-301 references
Understand the machine and the learning behind the guide
Gene Café CBR-301 Start Here
A practical entry page for owners trying to understand the machine without overreading its display or app graph.
What to Know Before You Buy
A buyer-facing reflection about expectations, control and what the Gene Café does and does not appear to be.
What I Wish I Knew Before Roast 1
A practical reflection on the early mistakes, assumptions and calmer ways to learn the CBR-301.
Project method
How the project tries to stay honest
Method & Assumptions
How measured data, direct observation, interpretation and working hypotheses are kept separate.
Green Coffees Used
A reference list for coffees used across the project, useful when comparing roast notes and outcomes.
Experimental and legacy resources
Still available, but no longer the centre of the project
These tools remain accessible for anyone who finds them useful. They are experimental helpers rather than supported products, and they are no longer the main identity of the site.
Gene Café JSON Roast Report
A cautious report helper for selected Gene Café app exports, retained as an experimental reference.
Simple Cupping Form
A straightforward tasting form for recording body, acidity, balance, finish and whether the coffee is worth revisiting.