Lalocura San Martinero is made with a Karwinskii agave that is locally referred to as San Martinero. The agave is a larger, thicker sub-species of Karwinskii that can also be called Barril in other communities. A similar Karwinskii is also called Sanmartin in Ejutla, which is not terribly far from Santa Catarina Minas, where Lalocura is made. Maestro mezcalero Eduardo Angeles cooks his agave with Encino wood. He mashes the cooked agave by hand with wooden mallets, ferments the agave in open-air cypress vats for twelve days, and double distills this mezcal in small clay pots.