Champagne Coessens Largillier Exogyre Blanc de Noirs Extra Brut

When Jérôme Coessens established his label in 2006, he committed to a Burgundian logic almost structurally incompatible with Champagne: one lieu-dit, one grape, no reserve blending — except here. The Exogyre is the deliberate exception, a perpetual solera started in that inaugural 2006 vintage, drawing from all four sub-parcels of the 3.36-hectare Largillier monopole in Ville-sur-Arce.

The vineyard sits on Kimmeridgian Marl No. 2 — alternating clay and chalk-limestone strata geologically confirmed by 2011 excavations to mirror the Grand Cru terroir of Chablis. The clay fraction drives the wine's uncommon body and grip for a Blanc de Noirs; the chalk delivers the mineral length that distinguishes Côte des Bar from the lighter Marne valley.

Base wines are fermented in stainless steel, preserving site expression without oak interference. The solera structure means every disgorgement carries fractional volumes from every vintage since 2006, producing a layered complexity no single-year release can replicate. Lees aging runs approximately 50 months sur lattes — among the longest in the estate's range — and dosage is held to ~2–3 g/L Extra Brut, leaving the Kimmeridgian mineral tension fully exposed. The Exogyre name references the fossil oysters embedded in the marl itself, a direct geological signature in the label.