100% Chenin Blanc. Guiberteau’s 1.4-hectare Clos de Guichaux is a historically renowned vineyard in Bizay terroir in the small village of Épieds, near Brézé. It is a monopole for Guiberteau. The site is the classic clay/limestone of the region but has only 30cm of topsoil before the roots plunge directly into the pure, chalky bedrock. It’s a site quickly cementing its place as one of Saumur’s finest white vineyards—thanks to wines like this.