Q: Could you tell me how Port, Tawny Port, and Cabernet Sauvignon compare as far as sugar content goes? —Martin
A: Each wine is going to vary a bit from producer to producer, but here is some general data from the USDA nutrient database: "red table wine", a category which includes Burgundy, Cabernet Sauvignon, and Merlot, contains .62 g of sugar per 100 g of wine (.91 g per 5 oz. serving), while "sweet dessert wine", a category which includes marsala, port and Madeira, contains 7.78g of sugar per 100g of wine (4.6 g of sugar per 2 oz. serving). For more information on styles of port, check out this previous Q&A.
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