Douglas Kohlberg French, 70, Master distiller and owner of Sierra Norte Whiskey, checks the quality of the aging of the Sierra Norte Whiskey from the barrels, at the Sierra Norte distillery in Oaxaca, Mexico on Wednesday, December 20, 2023. The Sierra Norte Whiskies are made from 85% ancestral non GMO black, white, yellow, purple and red heirloom corn farmed by traditional farmers in Oaxaca, Mexico and 15% malted barley, then double distilled in copper pot stills and aged approximately 2 to 3 years in French Oak single barrel casks. Douglas French created Sierra Norte Whiskey in 2015. Photograph by Bénédicte Desrus