How is port wine different from regular wine?

Port is a sweet fortified Portuguese wine created from fragrant grape varietals. Fortified wine differs from other varieties in that it is infused with a distilled spirit, such as cognac or brandy, to increase its alcohol content. As a result of its sweet flavor and habit of being consumed with or after dessert, the port is classified as a dessert wine. Alternatively, it can be served as a dessert by itself. Because it's fortified, Port has a greater alcohol level than a typical glass of wine; it's closer to 20% ABV (alcohol by volume) than the norm in the United States, which is 12% alcohol. Given its high alcohol content, it's little wonder Port is often consumed in tiny servings.