Tequila 1921 is produced from agave grown in the Jalisco highlands, which captures the most sunlight of all the micro regions of tequila. The blanco is now distilled twice in stainless-steel stills with copper coils and bottled fresh off the still. Note: this review is for the newest releases of the product under the NOM 1535 (previous it was 1079), produced at Destileria Morales. 1921 Tequila Blanco is produced with 100% Blue Weber estate grown Agave, double distilled in stainless steel pot stills containing copper coils.