Trace fragments in downstream product
Isolate affected product. Inspect the fruit, chosen stone-control action, reject and pulper screen from the same period before shrinking a screen opening.
Compare lots before changing flow settings
A change in lot variety, maturity or drying history, conditioning water and solids can alter texture. Repeat viscosity measurements at the same temperature and with the same method before changing buffer-tank, pump or pulper settings.
Investigate apparent output after water addition
Compare incoming fruit, deliberate water, conditioned material and measured product with the feed-and-water ledger. Wet mass is not fruit-solids recovery.