Aging wines can bring out their rich flavors, soften the tannins that provide structure. However, excessive tannins can be harsh, so aging allows them to create a more enjoyable mouthfeel. For white wines with limited tannins, acidity becomes an important indicator. Besides, alcohol and residual sugar play significant roles. Sweet wines like fine Port and Sauternes can often age for 30 to 40 years.
Wine doesn't expire; it simply evolves in different states. Well-preserved wines in their optimal drinking window will captivate you, while poorly stored ones may disappoint even within their recommended drinking period.