Muscadet is a light, dry white wine from France's Muscadet region, which is located at the mouth of the Loire Valley off the Atlantic coast, just southeast of the city of Nantes. Though the grape varietal grown there is known locally as Muscadet, it's actually the Melon de Bourgogne grape. The three Muscadet appellations are Muscadet AC (which produces the lowest-quality Muscadet), Muscadet des Coteaux de la Loire, and Muscadet de Sèvre-et-Maine (which produces the highest-quality Muscadet). Since the Muscadet/Melon grape generally lacks flavor, many winemakers leave the fermented wine on the lees (sur lie) for several months to extract more character and liveliness. Most Muscadet wines are inexpensive and best consumed when they are young and fresh, though Muscadet-sur-lie versions can age for several years.