Egg Whites in Bordeaux
Egg whites are used to reduce tannins and enhance clarity, particularly in red wines. They are commonly used in Bordeaux, especially for Cabernet Sauvignon, to smooth out the wine and improve its appearance.
Bentonite Clay
Bentonite clay is a natural substance that absorbs proteins and other impurities, helping to clarify both red and white wines. It is effective in removing haze and improving wine stability. Unlike most other substances mentioned in this article, Bentonite Clay, as far as we can tell is vegan and is therefore should be considered vegan.
Gelatin, Collagen and Wine Color
Gelatin typically comes from animal sources, particularly the collagen found in connective tissues, bones, and skin of animals such as cows, pigs, and fish. The process involves boiling these parts to extract the collagen, which is then processed into gelatin. Because it is derived from animals, gelatin is not considered vegan. Gelatin is used to brighten wine color by removing excess tannins. This results in a more vibrant and appealing appearance, enhancing the wine's overall presentation.
Isinglass, Fish Bladders and White Wine Clarity
Isinglass, where do these names come from, derived from fish bladder, is used to clarify white wines and remove unnecessary color. It is especially effective in giving white wines a clean and bright appearance.
Casein Milk Protein and Sauvignon Blanc
Casein, a milk protein, is used primarily in white wines like Sauvignon Blanc to remove oxidative taint and achieve brilliant clarity. It helps to stabilize the wine and enhance its appearance.
Chitosan, Crustaceans and White Wines
Chitosan is derived from chitin, which is a substance found in the exoskeletons of crustaceans like shrimp and crabs. Chitosan is used to address excess color in white wines, helping to balance and clarify the wine's color. It contributes to a more refined and aesthetically pleasing final product