Port wine is a fortified wine originating from the Douro region in northern Portugal. It is produced from grapes grown in this region, then fortified with grape brandy (usually brandy) during or after fermentation. This stops the fermentation, preserves some of the natural sugar from the grapes, and increases the alcohol content, which typically ranges between 19 and 22%. There are several styles of Port, such as Ruby Port (young, fruity, with red fruit aromas, aged for a short time), Tawny Port (aged longer in wooden casks, which gives it a more amber color and flavors of nuts, caramel, or dried fruits), White Port (made from white grapes, often lighter and sometimes served chilled), and Vintage Port (from a single exceptional year, bottle-aged, rich and complex, intended for long aging). Styles such as Vintage and certain unfiltered Late Bottled Vintage (LBV) are those that age best, often over decades (20, 50 years or more for a high-quality Vintage). They evolve in the bottle, gaining complexity with aromas that transition from fresh fruits to richer and more subtle notes (dried fruits, spices, tobacco).