RoastTrace: Coffee Roast Log

RoastTrace is a local-first coffee roasting log for repeatable learning.

Record beans and batch setup, run a live roast timer, capture first crack and other events, log temperatures, calculate development ratio and weight loss, add cupping notes, and compare sessions.

The free version supports the core roast workflow within local limits. A one-time Premium purchase raises capacity limits and unlocks advanced comparison. Existing records stay readable and portable JSON backup remains available.

No account is required. Roast data stays on your device unless you export it. RoastTrace does not control roasting equipment and its timer or notifications are not fire, ventilation, or food-safety devices.