Château Caillou has a surface of 16 hectares and is located in the region of "Haut-Barasc" at 30 minutes drive from Bordeaux. 13 hectares are classified as a Grand Cru Classé in 1855. Château owes its name to its underground composed of chalky and clayey plateau mixed with red sand rich in flagstones and rocks which bring the wine its delicate flavour.
The vineyard is composed of two grape variesties ; Sémillon (90 %) and Sauvignon (10%). Sémillon is known for developing " the botrytis cinéréa" also called the "noble rot" and gives the wine a fine and sweet taste with honey, amada and cinnamon aromas. The 10 % left (Sauvignon) brings more freshness to the wine and adds some citrus, lemon and exotic fruits aromas.