Roasting
The Roast page covers everything about roasted coffee. Open it from the sidebar (Roast). It requires the view roasted lots permission and the roast zone to be enabled.
Tabs
┌─────────────────────────────────────────────────────────┐
│ Roasting │
├──────────┬──────────┬──────────┬────────────┬───────────┤
│ Lots │ Runs │ Recipes │ Parameters │ Groups │
└──────────┴──────────┴──────────┴────────────┴───────────┘
| Tab | Purpose |
|---|---|
| Lots | Individual roast batches with timings & weights |
| Runs | Grouped production runs (multiple batches) |
| Recipes | Roast blend definitions |
| Parameters / Targets | Roast quality specifications |
| Groups | Recipe organisation |
The roast lot lifecycle
As a batch travels through the roaster, Roasthubs records its journey from the funnel to the roast cell:
Timings and metrics on a roast lot
| Metric | Meaning |
|---|---|
| Dosing time | Time to weigh the blend components |
| Funnel time | Waiting before charging the drum |
| Charge time | Loading the drum |
| Roasting time | Drum to cooler |
| Quenching time | Duration of quenching (if used) |
| Cooling time | In the cooler until discharge |
| Total cycle time | End-to-end batch duration |
| WLP | Weight loss percentage (input vs. output) |
WLP (weight loss percentage) is a key roast indicator: green coffee loses moisture and mass during roasting, so output weight is lower than input. Comparing actual WLP to a recipe's expected WLP helps catch roast problems.
Roast recipes
Roast recipes combine green coffee components into a blend, with an expected weight loss for the roast. Create and manage them on the Recipes tab — see Recipes & Coffees.
Roast Compare
If the Roast Compare module is enabled, a separate sidebar item lets you compare roast profiles side by side — useful for dialling in consistency between batches or machines.
Continue to Grinding →.