Greenhouse, Indoor Farming & Agri-Processing calculator

Produce rejection rate calculator

Calculate rejection rate by dividing rejected packs (clamshells, cases, or pallets pulled for decay, leaks, off-spec, MAP failures, or DC reject) by total inspected packs, then comparing against your retailer or internal target. Use the gap-to-target to flag a quality drift before a customer chargeback hits.

What this calculator does

  • Calculate packhouse rejection rate (clamshells, cases, or pallets pulled at QC, customer DC, or final inspection) against a quality target so the post-harvest team can spot when shrink, decay, MAP failures, or oversize defects are eating margin.
  • Use it during a daily QC tier-board review when complaints from a retail DC come in, or when a cultivar or new clamshell film is on trial and you need to compare rejection vs control.
  • Turns rejected packs (qc + dc + customer), total packs inspected or shipped, target rejection rate into a rate for rejection rate cost in greenhouse, indoor farming and agri-processing.

Formula used

  • Actual rejection rate = rejected packs ÷ total packs inspected or shipped × 100
  • Gap to rejection target = actual rejection rate − target rejection rate

Inputs explained

  • Rejected packs (QC + DC + customer): Sum packs pulled at packhouse QC, hold lot rejects, DC chargebacks, and customer complaints over the period.
  • Total packs inspected or shipped: Use total packs that left the line and were available for inspection over the same period.
  • Target rejection rate: Use the customer's specification or your internal target — commonly 1-3% for fresh leafy greens, 0.5-1% for premium herbs.

How to use the result

  • Use it when rejection rate cost in greenhouse, indoor farming and agri-processing is being reviewed against a KPI.
  • Trend matters more than a single snapshot; pull the result for the last several periods before you act.

Common questions

  • What problem does this rejection rate cost calculator solve? Calculate packhouse rejection rate (clamshells, cases, or pallets pulled at QC, customer DC, or final inspection) against a quality target so the post-harvest team can spot when shrink, decay, MAP failures, or oversize defects are eating margin. You get a rate you can defend before quoting, scheduling, or sign-off.
  • Which inputs change the rate the most? rejected packs (qc + dc + customer), total packs inspected or shipped, target rejection rate usually move the rate most. Pull from measured greenhouse, indoor farming and agri-processing runs, supplier data, and recent quotes rather than memory.
  • What do I do with this number? Use the gap to target to prioritize the next greenhouse, indoor farming and agri-processing kaizen or corrective action.
  • What should I verify first? Confirm the counts came from the same time window and the same scope; mismatched scope is the most common error.

Last reviewed 2026-05-12.