Coffee, Tea, Roasting & Dry Goods Processing worked example
Roast Batch Yield at 60% target roast yield: a worked example
This worked example runs the roast batch yield numbers for a tougher week than the baseline: 60% target roast yield instead of the typical 84%. Calculate roast batch yield from roasted coffee output, green coffee charged, and target roast yield.
The inputs for this scenario
- Roasted coffee output (out of roaster): 84 lb (held at the documented default)
- Green coffee charged to drum: 100 lb (held at the documented default)
- Target roast yield: 60 % (the input this scenario stresses; the baseline uses 84)
Working through the calculation
- The calculation starts from the formula this tool documents: Roast Batch Yield = roasted coffee output ÷ green coffee charged × 100.
- roast batch yield works out to 84 % at these inputs, and this is the headline figure for the scenario.
- roast batch yield gap to target works out to -24 points at these inputs.
- roasted coffee output works out to 84 count at these inputs.
- green coffee charged works out to 100 count at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where target roast yield sits at 84% and the headline result is 84 %, this scenario lands almost exactly on the baseline at 84 %.
- Use it after each batch (or each green lot) to verify the profile is hitting spec and to convert green inventory into sellable-pound forecasts. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.
Results at a glance
- roast batch yield: 84 % (headline result)
- roast batch yield gap to target: -24 points
- roasted coffee output: 84 count
- green coffee charged: 100 count
Run it with your numbers
- To rerun this with your own numbers, open the live Roast Batch Yield calculator, set target roast yield to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.