Dairy & Frozen Food Manufacturing worked example

Quality Hold Time at 12% retest and documentation allowance: a worked example

What does the result look like when retest and documentation allowance reaches 12%? The full calculation is worked below with real intermediate numbers. Use it when quality hold time in dairy and frozen food manufacturing is changing rate or allowance and you want to see the impact.

The inputs for this scenario

  • Lots or quality checks on hold: 120 lots or checks (unchanged)
  • QA release completion rate: 12 checks / hr (unchanged)
  • Retest and documentation allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base QA review time = lots or quality checks on hold รท QA release completion rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for required quality hold time, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base qa review time.
  • At this operating point the engine returns 12 % for retest and documentation allowance.
  • At this operating point the engine returns 12 pieces / min for qa release completion rate.

How this compares with the baseline

  • Against the tool's baseline example, where retest and documentation allowance sits at 10% and the headline result is 11 hr, this scenario comes in 1.82% above the baseline at 11.2 hr.
  • A figure at this level is achievable when retest and documentation allowance is genuinely sustained, not just peaked for a shift. It assumes the release rate stays constant and does not model a failed retest or an out-of-spec investigation that can extend the hold well beyond the allowance.

Results at a glance

  • Required quality hold time: 11.2 hr (headline result)
  • Base QA review time: 10 hr
  • Retest and documentation allowance: 12 %
  • QA release completion rate: 12 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.