The fist time I tasted an agave spirit fermented in the skin of a bull, it was all anyone was talking about in Oaxaca. I tasted it at three mezcalerias, and all three bottles were made by Amando Alvarado Alvarez in Santa Maria Ixcatlan, Oaxaca. I made my way out to visit him a few months later, to see the bull-skin fermenters myself. And when I share his spirits at tastings, everyone is in awe of these bull-skin fermenters. But … why bull skins? Where did that start? I think I have the answer! And I share it with you in this speculative episode of Agave Road Trip! Agave Road Trip is a critically acclaimed, award-winning podcast that helps gringx bartenders better understand agave, agave spirits, and rural Mexico. This episode is hosted by Lou Bank with special guest Sergio Garnier of Mezcal Ultramundo.