A commercial Creusot‐Loire BC‐105 twin‐screw expanded dry pet food extruder was operated to provide extruded moistures between 7.9% and 12.4% at constant product density. Low moisture extrusion decreased product uniformity 45% and product shape roundness by 70%. It increased air ceil size 41% and internal fissuring by 25%. After drying all samples to low moisture, the samples extruded at a low initial moisture were more fragile with 15% lower ultimate strength as measured by crushing with an Instron testing machine.
No takes yet. Share an insight, caveat, or question.
Robert C. Miller (1985) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: