91 Points - Hudun.com. The A de Château d’Arche Bordeaux Blanc is the dry white wine from the Sauternes Grand Cru Classe, Château d’Arche. 2021 was an outstanding vintage for white Bordeaux wines as growers were able to harvest before the rains came. A blend of 85% Semillon and 15% Sauvignon Blanc, the grapes came from selected plots that weren’t affected by botrytis, the fungus that makes Sauternes sweet. The grapes were hand-harvested and hand-sorted before being gently pressed and fermented i