Author: Lamar Engel
A group of organic substances responsible for the mouth-drying quality in a structured red wine. They can also be present in white wines such as Pinot Grigio and Gewurtztraminer, which are made from pinkish red grapes. The primary source for tannin in wine is found in the skins of the grapes, although it may also come from the oak treatment, seeds, and stems. Some grapes naturally have more tannic compounds than others and its levels of strength are determined by style and maceration time.