Exp. 20 is a Brut Nature Blanc de Blancs Grand Cru cuvée from Pascal Agrapart in Avize, made from old-vine fruit and produced without external additives. The wine is 100% Chardonnay and is commercially listed with the 2020 vintage. Bottled under cork, the cuvée reflects Agrapart’s experimental, low‑intervention approach to Champagne.