Its varieties, Silver and Reposado, are 100% agave tequilas. Herradura brand tequilas are 100 % blue agave. All 100% agave tequilas must have a NOM identifier on the bottle. Olmeca Tequilas are produced at Destileria Colonial de Jalisco. These tequilas are also used by bartenders and mixologists in California and Hong-Kong, among others. The Excellia range got several awards in the premium tequilas range. It was named on "Bloomberg Businessweek"'s 2009 list of the world's 20 best-tasting tequilas. All three tequilas are kosher certified. All authentic, regulated tequilas will have a NOM identifier on the bottle. "The Best Tequilas You Can Buy" list.