Château d'Arche Grand Vin Blanc Sec is a dry white wine from the Bordeaux appellation produced by Château d'Arche, a historic estate in Sauternes classified as Grand Cru Classé in 1855. The wine is crafted from a blend of approximately 85% Sémillon and 15% Sauvignon Blanc, with grapes hand-picked on the verge of botrytisation to capture exceptional aromatic complexity.

The wine is aged half in stainless steel vats and half in oak barrels — a portion of which are new oak and others previously used for Sauternes — lending the wine both freshness and subtle richness. The result is a dry white that reflects the same terroir typicity as the estate's celebrated Sauternes, with a complex aromatic base and a profile that is both elegant and expressive.