Beverage Brewing, Distilling & Fermentation worked example

Fermentation Tank Utilization at 61% target cellar utilization: a worked example

This worked example runs the fermentation tank utilization numbers for a tougher week than the baseline: 61% target cellar utilization instead of the typical 85%. Measure fermentation tank utilization from occupied tank-days against available tank-days, with a target utilization for cellar scheduling.

The inputs for this scenario

  • Occupied fermentation tank-days: 186 tank-days (held at the documented default)
  • Available fermentation tank-days: 240 tank-days (held at the documented default)
  • Target cellar utilization: 61 % (the input this scenario stresses; the baseline uses 85)

Working through the calculation

  • The calculation starts from the formula this tool documents: Fermentation tank utilization = occupied fermentation tank-days ÷ available fermentation tank-days × 100.
  • Fermentation tank utilization works out to 77.5 % tank utilization at these inputs, and this is the headline figure for the scenario.
  • Utilization gap to target works out to -16.5 points at these inputs.
  • Occupied fermentation tank-days works out to 186 tank-days at these inputs.
  • Available fermentation tank-days works out to 240 tank-days at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target cellar utilization sits at 85% and the headline result is 77.5 % tank utilization, this scenario lands almost exactly on the baseline at 77.5 % tank utilization.
  • Use it monthly or per production cycle to size cellar capacity, justify new fermenters, and spot scheduling gaps before they constrain output. 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

  • Fermentation tank utilization: 77.5 % tank utilization (headline result)
  • Utilization gap to target: -16.5 points
  • Occupied fermentation tank-days: 186 tank-days
  • Available fermentation tank-days: 240 tank-days

Run it with your numbers

  • To rerun this with your own numbers, open the live Fermentation Tank Utilization calculator, set target cellar utilization to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.