100% Chenin Blanc. Pinon makes two brut sparkling wines, both méthode champenoise from estate parcels of flinty clay soils over the classic Vouvray tuffeau (soft chalky limestone). The earlier-harvested fruit goes into this bottling since it receives a dosage in the end--with the riper, later-harvest grapes going into the eventual Non-Dosé Brut. The vines for both average 45 years old and have been certified-organic since 2007. The fruit is harvested manually and goes through a rigorous three-step sorting process. The clusters are gently and slowly pressed whole,and juice flows by gravity to tanks below. Fermentation is spontaneous with indigenous yeasts in tank and lasts 4 to 6 weeks. The wine is racked into old tonneaux and steel tanks for 2 to 3 months of aging on the fine lees. The wine is then lightly filtered and bottled for its second fermentation.