Frédéric Giachino and his brother David farm 15 hectares in Savoie with full organic and biodynamic certification, working with the region's traditional grapes from the scree slopes of Mont Granier. Giac' Bulles is their pét-nat, made from Jacquère in the ancestral method, with natural refermentation in bottle, zero sulfites, and Demeter certification. It's the kind of fizz that has helped put Savoie on the natural-wine map. Expect something fresh, lightly cloudy, and built for a sunny afternoon, with crunchy alpine fruit, gentle bubbles, and a salty, mountain-stream finish. Hard to drink just one glass.