Château Biac produces wines from Bordeaux, the world's most celebrated region for structured red blends. The winery's portfolio spans both white and red expressions. Secret de Château Biac Cadillac, a blend of Sauvignon Blanc and Sémillon, demonstrates the aromatic and textural range of the region's white wines. The flagship Bordeaux blend—built from Cabernet Sauvignon, Petit Verdot, Cabernet Franc, and Merlot—follows the classical architecture of the appellation, where these varieties combine to create wines of depth and aging potential. Cuvée Felix de Biac, a Merlot-led blend with Cabernet Franc and Cabernet Sauvignon, offers another expression of the house's red wine philosophy. The winery's releases have been assessed by Wine Spectator, Decanter, and Wine Enthusiast.