Cuvee on a red wine label originally referred to the wine in one vat, but now refers to a blend of wine from several vats.

The words Syrah, Cabernet Sauvignon, Merlot, etc. often appear on red wine labels, which refers to the variety of grapes used. Some red wines are made from a single type of grape, while others are made from 2 to 3 types of grapes. The taste of the red wine produced is also different. Red wines made from single or blended grape varieties are equally good, they just suit different consumer tastes.

Extended information:

The older the vintage, the better the red wine. The vintage on the red wine refers to the year it was brewed. Most (99) wines do not have the ability to age, and the best drinking period varies depending on the wine, generally between 2 and 10 years. Only a small number of particularly good wines have the ability to age. Some of the top red wines from France and Italy can be aged for decades or even hundreds of years. Many wines from Bordeaux's top wineries are still suitable for drinking even if they have been preserved for more than a century.

Wine that is suitable for aging requires tannin (that is, tannic acid), and Cabernet Sauvignon (grape variety) is the most suitable for aging among many grape varieties due to geographical factors and its characteristics.

Baidu Encyclopedia-Red Wine