The difference between mezcal and other agave spirits. Maybe someone told you that all tequilas are mezcal but not all mezcals are tequila. That was true in 1993 but not anymore, and that’s the first lesson of this Mezcal 301 session. Now that you understand tequila and mezcal, we take a step back for the broader view, to place the two expressions in the context of the other agave spirits.