Flavors, Fragrances & Aroma Chemicals worked example

Odor Changeover Time at 29% rinse, sniff-test, and qa allowance: a worked example

Push rinse, sniff-test, and qa allowance up to 29% and the picture changes. This example computes every intermediate figure at that operating point. Use it when scheduling allergen-sensitive flavors, high-impact odorants, sulfur notes, musks, mint, citrus, or fragrance oil changeovers.

The inputs for this scenario

  • Odor changeovers planned: 7 changeovers (unchanged)
  • Completed odor changeovers per hour: 1.4 changeovers / hr (unchanged)
  • Rinse, sniff-test, and QA allowance: 29 % (raised for this scenario; the documented default is 25)

Working through the calculation

  • Applying the documented formula (Base odor changeover time = odor changeovers planned รท completed odor changeovers per hour) to the inputs above produces each figure below.
  • At this operating point the engine returns 6.45 hr for required odor changeover time, the number this scenario is built around.
  • At this operating point the engine returns 5 hr for base odor changeover time.
  • At this operating point the engine returns 29 % for rinse, sniff-test, and qa allowance.
  • At this operating point the engine returns 1.4 changeovers / hr for completed odor changeovers per hour.

How this compares with the baseline

  • Against the tool's baseline example, where rinse, sniff-test, and qa allowance sits at 25% and the headline result is 6.25 hr, this scenario comes in 3.2% above the baseline at 6.45 hr.
  • It divides planned changeovers by the completed-per-hour rate to get base time, then inflates it by a rinse, sniff-test, and QA allowance to give required changeover time. 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

  • Required odor changeover time: 6.45 hr (headline result)
  • Base odor changeover time: 5 hr
  • Rinse, sniff-test, and QA allowance: 29 %
  • Completed odor changeovers per hour: 1.4 changeovers / hr

Run it with your numbers

  • Every input above is editable in the live Odor Changeover Time calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.