Natural sparkling wine with zero dosage and zero sulfur—radical even by Jura's standards. Michel Gahier (family in Montigny-lès-Arsures since 1525) produces this Crémant from 100% Chardonnay (the local 'Melon à Queue Rouge' clone) grown on a 1.2-hectare plot of gravel and limestone in Cramans, eight kilometers from his home. Traditional method, 24 months on lees, low yields (45 hl/ha). No sulfur added at any stage—a commitment few sparkling wine producers worldwide would attempt. The result is alive, textured, and completely transparent to its terroir.