Coffee, Tea, Roasting & Dry Goods Processing calculator

Green Bean Shrink Calculator

Use this calculator to track shrink beyond expected roast loss, including moisture loss, chaff, handling loss, spills, sampling, transfer loss, and inventory discrepancies. It helps roasters and green buyers reconcile green usage to finished production.

What this calculator does

  • Calculate green bean shrink from weight lost between green coffee receiving, roasting, and finished roasted inventory.
  • monitoring green coffee shrink and inventory variance
  • The result supports inventory reconciliation and roast-loss control.

Formula used

  • Green Bean Shrink = green coffee shrink weight ÷ green coffee starting weight × 100
  • Gap to target = target green bean shrink - green bean shrink

Inputs explained

  • Green Bean Shrink completed output: undefined
  • Green Bean Shrink runtime: undefined
  • Green Bean Shrink efficiency: undefined

How to use the result

  • Use it when reviewing green inventory, origin performance, or abnormal production losses.
  • Treat the result as a planning estimate until it is checked against actual roast logs, green and finished weights, moisture readings, grinder or blender records, packaging checkweigher data, lot traceability, labor reports, utility bills, and released production records.

Common questions

  • What is the green bean shrink calculator for? It calculates green coffee shrink percentage and gap to target.
  • What information should I enter? Use shrink weight, starting green coffee weight, and expected shrink percentage.
  • What does the result tell me? The result supports inventory reconciliation and roast-loss control.
  • When is the result only an estimate? Treat the result as a planning estimate until it is checked against actual roast logs, green and finished weights, moisture readings, grinder or blender records, packaging checkweigher data, lot traceability, labor reports, utility bills, and released production records.

Last reviewed 2026-05-12.