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Ceramic Firing Loss Calculator

Ceramic Firing Loss gives ceramic plants a cost view of cracks, warpage, bloating, glaze defects, dunting, color rejects, and handling losses around the kiln. It combines lost pieces, cost per piece, allocation, and fixed containment work.

What this calculator does

  • Estimate the cost of ceramic ware lost during firing, cooling, unloading, or kiln inspection.
  • a ceramic plant needs to cost kiln-related scrap for a product, firing cycle, or line
  • The result is estimated firing-loss cost for the selected kiln or product scope.

Formula used

  • Allocated ceramic firing loss = pieces lost during firing or kiln unloading × cost per fired piece lost × allocation share
  • Ceramic Firing Loss = allocated cost + fixed cost

Inputs explained

  • Pieces lost during firing or kiln unloading: Use pieces lost during firing or kiln unloading from the same material, product, equipment, batch, shift, or order scope.
  • Cost per fired piece lost: Use cost per fired piece lost from the same material, product, equipment, batch, shift, or order scope.
  • Firing loss assigned to this product or kiln: Use firing loss assigned to this product or kiln from the same material, product, equipment, batch, shift, or order scope.
  • Fixed kiln sorting, rework, or disposal cost: Use fixed kiln sorting, rework, or disposal cost from the same material, product, equipment, batch, shift, or order scope.

How to use the result

  • Use it after kiln curve changes, glaze changes, high-scrap firings, or refractory and burner issues.
  • Cost per piece should reflect greenware, glaze, firing energy, labor, and packaging only if those costs are truly lost.

Common questions

  • What is Ceramic Firing Loss for? Estimate the cost of ceramic ware lost during firing, cooling, unloading, or kiln inspection.
  • What information do I need before using it? Enter fired pieces lost, cost per lost piece, allocation share, and fixed sorting or disposal cost.
  • When is the result only an estimate? Cost per piece should reflect greenware, glaze, firing energy, labor, and packaging only if those costs are truly lost.
  • How can I use the result? Use the result to prioritize kiln tuning, body changes, glaze corrections, or maintenance actions.

Last reviewed 2026-05-12.