Château du Port produces Malbec from Cahors, the South West France region where the grape finds its most structured expression. The winery's portfolio centers on three bottlings: Grande Réserve Cahors Malbec, Cuvée Prestige Cahors Malbec, and Tertre-Perdigous Cahors Malbec. Malbec in Cahors yields wines of dark fruit and firm tannin, shaped by the region's continental climate and limestone-clay soils. Wine Enthusiast and Decanter have rated these releases, with the Grande Réserve earning particular recognition among the three. The winery's focus remains on single-varietal Malbec, allowing the grape's character and the terroir of Cahors to define each cuvée.