While most mezcal is joven (unaged or “silver” in the tequila world), there are many different styles of mezcal. Like tequila, mezcals that are gold or brown in color have been aged in barrels; that style is called reposado or añejo depending on the length of aging. Unlike tequila, mezcal has an aging process called aged in glass. Mezcals can also be made with two or more different agave species, called ensambles. Last but not least, the style of pechuga is one of the most interesting and unique to mezcal.