Portos are a type of Portuguese fortified wine, primarily produced in the Douro Valley. Known for their rich, sweet flavors and higher alcohol content, achieved by adding grape spirits during fermentation, Portos are typically enjoyed as dessert wines. They come in a variety of styles, including Ruby, Tawny, Vintage, and White, each offering distinct flavor profiles ranging from fruity and youthful to nutty and aged. The aging process, often taking place in oak barrels, significantly influences the final character and complexity of the wine, making Portos a beloved and sophisticated choice for wine enthusiasts worldwide.