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QUERTANIN™ PLUS is a preparation of ellagic tannins used in aging, which acts on the tannic structure and contributes to balance in wines.
• Regulates redox phenomena during barrel aging or micro-oxygenation.
• Recreates an environment rich in ellagic tannins in used barrels, identical to that found in new oak.
• Facilitates clarification.
DOSAGE:
It is specified in the Oenological Codex that tannins “must not change the olfactory properties and the colour of wine”. The dosage rates will therefore vary in function of the wine matrix, and shall be determined after trials.
• Preservation of aromatic freshness in white and rosé wines: 2 - 5 g/hL (20 - 50 ppm).
• Ageing of red wines: 5 - 10 g/hL (50 - 100 ppm).
Querplus
Querplus is a soluble wood tannin extracted from toasted American oak Stavewood. It works in much the same manner as Quertanin but with an additional vanillin oak character and smooth finish.
Dosage: Red Wine: 100-200 ppm 0.83-1.6 lb/1000 gal (10-20 g/hL) White Wine: 50-100 ppm 0.42-0.83 lb/1000 gal (5-10 g/hL)