Mas de Daumas Gassac operates in Languedoc, the sprawling southern French region known for bold reds and mineral whites. The winery's portfolio centers on two distinct expressions: a Cabernet Sauvignon–based cuvée and a white built from Gros Manseng, a variety prized for its aromatic intensity and structure. The Cuvée Émile Peynaud, the flagship red, draws critical attention from Wine Advocate, Decanter, Wine Spectator, Falstaff, and Wine Enthusiast. A secondary red, Haut Vallée du Gassac Rouge, blends Merlot, Malbec, Petit Verdot, Cabernet Franc, Pinot Noir, and Cabernet Sauvignon into a layered expression of the terroir. The white offers a counterpoint—aromatic and textured, anchored in Gros Manseng's natural acidity. Together, these wines reflect Languedoc's capacity for serious, food-driven production beyond the region's everyday reputation.