"Sweet Tannins"

CG Liquid simulation short video clip.

"Sweet Tannins"
Tannins are felt as a textural sensation of astringency on the tongue. The feeling of tannin is most obvious towards the finish of a wine. For a wine to have sweet tannins, the grapes must have been perfectly ripe. In order to be fully ripe, the seeds of the grapes change from a more greenish color to a more tan or brown color indicating the phenols in the seeds have matured. This is what softens the somewhat bitter and astringent tastes in bold red wines and is a great taste description to look for in rich, fruity red wines.

source: https://winefolly.com/tutorial/7-wine-words-to-describe-the-indescribable/