What is a tannic wine?

If you've ever brewed tea too long and got that dry, mouth-puckering feeling — congratulations, you've experienced tannins. In wine, tannins come from grape skins, seeds, and sometimes stems. They can also come from oak barrels during ageing.

Some grapes are naturally more tannic than others. Cabernet Sauvignon is the poster child — a young Cab can make your gums feel like sandpaper (in a good way, if done right). Nebbiolo from Piedmont, Tannat from southwest France, and Mourvèdre are also heavy hitters. On the other end, Pinot Noir and Gamay tend to be much lighter on tannins.

Here's what matters: it's not just about how much tannin a wine has, but what kind. Tannins from perfectly ripe grapes feel silky and velvety. Tannins from underripe grapes feel harsh and bitter — like chewing on a green banana skin. Winemakers spend a lot of effort getting this right through careful harvest timing and gentle extraction.

The good news is that tannins mellow with age. Over years in the bottle, tannin molecules link together into longer chains that feel smoother on your tongue. That's why collectors cellar big Barolos and Bordeaux for a decade or more — they're waiting for the tannins to soften.

If you've opened a tannic red that's still young and grippy, two tricks help: decant it for an hour or two (the air exposure softens tannins), and pair it with protein-rich foods like grilled steak or aged cheese. The proteins literally bind to the tannins, so your mouth doesn't have to.