Jean Maupertuis tends 3,8 hectares of vines in the commune of Saint-Georges-sur-Allier and La Roche Noir. Jean doesn't use chemical fertilizers, insecticides or herbicides in the vineyard, preferring to work his soils and develop their indigenous microflora. Everything is hand harvested and manually sorted before reaching the cellar. Most of Jean's wines are vinified through carbonic maceration, which permits him to avoid adding sulfur at bottling.
This cuvée is made from old parcels of Gamay d'Auvergne and an ancient local grape variety, Noirfleurien (10%), planted at the foot of an ancient volcano.
The wine undergoes cold semi-carbonic maceration with half of the grapes de-stemmed. Fermentation starts in tank and then the wine is moved to old barrels.