How does grape juice/wine “dry” our tongues despite being liquid?

Question

How does grape juice/wine “dry” our tongues despite being liquid?

In: Biology

Answer 1

Wine, especially red wine, has large amounts of tannic acids. Tannins from tannic acids bind with proteins in your mouth and saliva; this causes these proteins to stick together, producing a rough and dry feeling.

This is why wines are often paired with cheeses – tannins also bind to fat, so the fat from foods like cheese will bind instead of the proteins in your saliva.