Wine Tannins is a high-quality, natural product essential for winemaking, both for home enthusiasts and professional winemakers. These tannins are crucial for clarifying wine, enhancing its flavor bouquet, and intensifying its color, giving wine exceptional depth and structure. Package Weight: 100g Dosage: 1 to 3 grams per 10 liters of wine Ingredients: Natural chestnut tannin.