Tannin - VR Grape (Formerly Biotan), 50g to 500g

VR Grape

VR Grape™ is a condensed tannin derived entirely from grape skins and seeds. It has low astringency and high polyphenolic richness.

This tannin can be added to the must (juice) when grapes are low in indigenous tannin or after alcoholic fermentation to balance tannin deficiency, build structure, stabilize color or serve as an anti-oxidant.

Using VR Grape prior to barrel aging encourages tannin integration in the wine over time.

It should be added at least six weeks before bottling to allow full reaction and polymerization. Successful additions can be made closer to bottling, but this may result in less throughput during filtration.

Dosage: Red Must (5-40g/HL), Red Wine (5-30g/HL), White Wine (5-15 g/HL), Rose Wine (10-20g/HL)