Château Berthenon produces wines from Bordeaux's Côtes de Blaye, a region defined by clay and limestone soils that favor Merlot-based blends with structure and depth. The winery's portfolio centers on three cuvées, each a marriage of Merlot with Cabernet Sauvignon and, in the Classique, Cabernet Franc. The Cuvée Henri Blaye leads the range, a blend that has drawn attention from Wine Enthusiast and Wine Spectator. The Cuvée Chloé Blaye and Cuvée Classique Blaye complete the lineup, offering variations on the house's approach to right-bank Bordeaux. These wines reflect the Côtes de Blaye terroir—a quieter corner of Bordeaux known for ripe, accessible reds with moderate tannin and good aging potential.