Old wine refers to wine that has been aged for several years, often in barrels or bottles, allowing it to develop complex flavors and aromas. The aging process can enhance the wine's characteristics, such as its taste, texture, and color. Different types of wine, like red wine and white wine, age differently, with some varieties benefiting more from aging than others. The aging potential of wine depends on various factors, including the grape variety, winemaking techniques, and storage conditions. Wines that are well-suited for aging often have higher acidity and tannins, which help preserve them over time. Popular aged wines include Bordeaux and Barolo.