Type. According to the Mexican regulations, there are four officially recognized types of tequila: Silver (blanco or plata): Bottled immediately after distillation, or within 60 days. May be stored in stainless steel tanks, but never on wood. Rested (reposado): Tequila aged in oak barrels for between two and 12 months before bottling. Aged (añejo): Tequila stored and aged in oak barrels for more than a year before being bottled. Gold (oro, suave, joven, joven abocado): Basically the same as blanco, but with coloring and flavoring ingredients added to make it look aged. Also called gold because of its coloring (usually through added caramel and sometimes oak essence)