Mezcal can be made from (a lot) more than 40 species of agave

How many different kinds of agave can be used to make mezcal? Well, heck, that’s easy: the regulations allow you to use any of them. So why have there been so many articles saying it’s “more than 40”? When 159 species have been identified in Mexico?! We take the media to task in this episode of Agave Road Trip!