Dry form of premium Slovakian wine tannin from the heart of the European/Spanish Chestnut tree. Wine Tannin will improve the flavor of a dull wine. Tannin can be used with white wines that have not been exposed to oak to add astringency. Wine tannin can also add an earthy flavor to red wines. Use in conjunction with gelatin or isinglass for later fining as well. Use 1/4 teaspoon per gallon for white or rose wine must: 1/3 teaspoon per gallon for red wine must; 1/2 teaspoon per gallon for fruit wine must.