Folle Blanche

Folle Blanche is an old French white once central to Cognac and Armagnac distillation before phylloxera devastated its plantings there; it has since become a minor curiosity used for high-acid, neutral base wines. California's CDFA data record 52 bearing acres in a single reported year, 2002, spread across Napa, San Joaquin, and Sonoma counties, with crush figures tracked from 2000 through 2017 and volumes never exceeding about 24 tons in a year. Reporting stopped after 2017. In California it functions as a rare specialty planting rather than a working distilling-industry grape as it once was in France.