Château Andron-Blanquet is one of the oldest properties in Saint Estèphe. The 16 hectare vineyard lies on Cos' gravel hill, and is planted with a mixture of traditional Médoc varieties. This wine's quality is such that between 1966 and 1978 it was ranked as a Cru Grand Bourgeois Exceptionnel by the Union of the Crus Bourgeois du Médoc.

The quality of the terroir, the choice of grape varieties and the vineyard's age produce wines with a beautiful colour. On the palate, the rich aromas of the bouquet develop the classic power of Saint Estèphe's wines, while at the same time remaining elegant and refined.