Bioplastics & Biomaterials Processing worked example

Moisture Sensitivity Risk with moisture impact severity score of 4 score: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop moisture impact severity score to 4 score, then walk the calculation through step by step. Score moisture-related processing risk for PLA, PHA, starch blends, cellulose compounds, and other hygroscopic biomaterials using severity, occurrence, and detection ratings.

The inputs for this scenario

  • Moisture impact severity score: 4 score (the input this scenario stresses; the baseline uses 8)
  • Moisture occurrence likelihood score: 6 score (held at the documented default)
  • Moisture detection difficulty score: 5 score (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Moisture sensitivity risk score = moisture impact severity score × moisture occurrence score × moisture detection score.
  • Moisture sensitivity risk score works out to 4.95 risk score at these inputs, and this is the headline figure for the scenario.
  • Moisture impact severity score works out to 4 score at these inputs.
  • Moisture occurrence score works out to 6 score at these inputs.
  • Moisture detection score works out to 5 score at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where moisture impact severity score sits at 8 score and the headline result is 6.55 risk score, this scenario comes in 24.43% below the baseline at 4.95 risk score.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to moisture impact severity score, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. The score is only meaningful when every material is rated on the same consistent scale; raw magnitude is less informative than the rank order it produces.

Results at a glance

  • Moisture sensitivity risk score: 4.95 risk score (headline result)
  • Moisture impact severity score: 4 score
  • Moisture occurrence score: 6 score
  • Moisture detection score: 5 score

Run it with your numbers

  • To rerun this with your own numbers, open the live Moisture Sensitivity Risk calculator, set moisture impact severity score to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.