Coffee, Tea, Roasting & Dry Goods Processing worked example
Grinder Throughput at 99% grinder operating efficiency: a worked example
Push grinder operating efficiency up to 99% and the picture changes. This example computes every intermediate figure at that operating point. planning ground coffee, spice, grain, or dry ingredient grinding capacity
The inputs for this scenario
- Finished ground coffee output: 720 lb (unchanged)
- Grinder runtime: 3 hr (unchanged)
- Grinder operating efficiency: 99 % (raised for this scenario; the documented default is 88)
Working through the calculation
- Applying the documented formula (Raw grinder throughput = finished ground output รท grinder runtime) to the inputs above produces each figure below.
- At this operating point the engine returns 238 lb / hr for effective grinder throughput, the number this scenario is built around.
- At this operating point the engine returns 240 lb / hr for raw grinder throughput.
- At this operating point the engine returns 99 % for grinder operating efficiency.
- At this operating point the engine returns 3 hr for grinder runtime.
How this compares with the baseline
- Against the tool's baseline example, where grinder operating efficiency sits at 88% and the headline result is 211 lb / hr, this scenario comes in 12.5% above the baseline at 238 lb / hr.
- It computes raw throughput as ground output divided by runtime, then multiplies by operating efficiency to give an effective lb/hr rate. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.
Results at a glance
- effective grinder throughput: 238 lb / hr (headline result)
- raw grinder throughput: 240 lb / hr
- grinder operating efficiency: 99 %
- grinder runtime: 3 hr
Run it with your numbers
- Every input above is editable in the live Grinder Throughput calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.