Tannins & Bitterness in Wine

Tannins and bitterness are often difficult to separate and properly identify in wine.
Tannins contribute to two sensations on the palate – astringency (lack of water) and bitterness. (Please note the word: CONTRIBUTE. There are other components in wine that also can enhance one, or both, sensations.)
Tannins are a type of polyphenol. Polyphenols are a small molecule that in wine, come primarily from the skins of the grape and/or from wood contact (wood barrels.) Tannins cause the sensation of astringency …
Robin Garr of 30 Second Wine Advisor says it so well – nothing to add:
Wine scores and reviews are confusing. It is hard to understand how the same wine received 92 points from one reviewer and only 88 points from another. Or how to equate a 20 point scale to a 100 point scale.





