Clos Puy Arnaud sits in Castillon, the eastern wing of Bordeaux where clay and limestone soils shape wines of mineral precision and dark fruit intensity. The winery draws from the region's traditional blend of Cabernet Sauvignon, Merlot, and Cabernet Franc—grapes that thrive in this cooler corner of the Right Bank. The Cuvée Bistrot Merlot showcases the varietal's plush mid-palate and ripe character, while the flagship Castillon - Côtes de Bordeaux expresses the full complexity of a structured Bordeaux blend. Le Rosé de Puy Arnaud, built from Merlot and Cabernet Franc, offers a drier profile than many rosés. Across its range, the winery's wines have drawn assessment from Wine Advocate, Decanter, Wine Spectator, and Wine Enthusiast.