Abstract
A pin-mill crusher was developed and evaluated against a roller crusher. The objective was to strip the adhering flesh from skins and seeds without damaging the seeds. Compositional changes of the must were investigated. The action of the pin-mill resulted in increases of suspended and soluble solids, reducing sugars, total tannins, alpha-amino nitrogen, and pH, whereas titrable acidity decreased. Stripping of the skins impaired the efficiency of the Bucher static separators. The higher yield found for the pin-mill may need verification.
- Received January 1977.
- Accepted October 1977.
- Published online January 1978
- Copyright 1978 by the American Society for Enology and Viticulture
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Vol 29 Issue 2
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