This Ultra Brut traditional method sparkling wine is produced by Domaine Carneros, who are owned by Taittinger Champagne. The wine is roughly an equal split of Chardonnay and Pinot Noir, with the exact blend changing from vintage to vintage. The grapes are entirely organically grown, and are all sourced from estate vineyards. Carneros is a cool climate region shared between Sonoma and Napa counties that is ideally suited to growing grapes for sparkling wines. This Ultra Brut expression means that no sugar has been added after disgorgement, creating a bone dry sparkling wine.