Tannin

Tannin is why some wines make your mouth feel dry. It is not a flavor like cherry. It is a texture.

In wine, condensed tannins come mainly from grape skins, seeds, and to a lesser extent other tissues; oak can add a smaller amount of hydrolyzable tannin ¹. Astringency is the drying, puckering sensation from tannin binding and precipitating saliva proteins, so the mouth loses lubrication ¹. Bitterness is a taste; astringency is a feel. Small phenolics skew more bitter; larger polymers more astringent — a useful tendency, not a tasting-wheel law.

Extraction is a winemaking decision #

Red fermentation keeps juice in contact with skins. That maceration extracts anthocyanins (color) relatively early and tannins more as alcohol rises ¹. Extended maceration after the sugar is gone is a choice for more structure, not a moral improvement. Over-extraction tastes harsh. White wines usually avoid this on purpose.

Punch-downs, pump-overs, cap management, and temperature are the levers. They belong to production; you taste the result.

Acidity changes the feel #

The same tannin feels more astringent in a more acidic wine ¹. Acidity is therefore part of tannin perception, not a separate optional topic. Sugar can mask; it does not delete the protein binding.

Aging #

In bottle or barrel, tannins keep reacting — with each other, with anthocyanins, with oxygen at a trickle. Color shifts; the grip often softens. That chemistry is sketched on Aging wine. It is not “the wine becomes more elegant” as an explanation.

Tea, unripe persimmon, and young Cabernet share the drying trick. Grape variety, ripeness, and seeds versus skins change the starting mix. Taste it using Tasting wine, not a score.