See if the year, raw materials and wine color match. The lighter the color of red wine will be, it will gradually change from the original purple to orange. By observing these three important places, if the raw materials are good, the year is long and the color is consistent, it must be a good bottle of red wine.

Smell the aroma: The aroma of good red wine is mellow, and its aroma also conforms to the characteristics of grapes. The aroma of red wine brewed by different varieties of grapes is naturally different. Tasting: Any good wine should be pleasant and pleasant in taste, with delicate and soft aromas, full-bodied and complete, layered and structured, and a long aftertaste.

Storage of red wine: The older the red wine, the better. The year on the red wine refers to the year's grapes. Most (99%) wines have no aging ability, and the best drinking period varies with different wines, generally between 2-10 years. Only a few particularly good wines have the ability to age.

Some top French and Italian red wines have the ability to age for decades or even hundreds of years. Many wines from Bordeaux's top wineries can still be drunk even if they have been preserved for more than 1 century. Tannin (tannic acid) is needed for wine aging, and Cabernet Sauvignon (grape variety) is the most suitable for aging among many grape varieties because of geographical factors and its characteristics.