ENOLOGIX'S 100-POINT WINEMAKING RATINGS
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Description: Vendor says, Proanthocyanidic tannins extracted from grapes.Thanks to the high quality of its extraction, BIOTAN® contains only a negligible quantity of phenolic acids, which are known Brettanomyces substrates. BIOTAN® allows: Compensation for natural grape tannin deficiency. Stabilisation of colour due to the formation of tannin-anthocyanin polymeric pigments.