No, it will not. Further, the worm is unique to mezcals, and not found in tequila by law. Mezcals however, may be sold "con gusano" which means literally "with worm". All tequila is mezcal, but not all mezcal is tequila; think sparkling wine/champagne, brandy/cognac and whiskey/bourbon. Both are agave-based liquors but tequila must be grown and distilled within specific areas within the state of Jalisco in Mexico, around the town of Tequila. Tequila must contain at least 51% "Agave tequilana Weber azul", the best are 100%. The confusion comes from a few places. In the Jalisco region the indigenous people call the plants used in the production of tequila, mezcal. Then there is the association with the cactus Mescal (note the "S") from which the hallucinogen Mescaline is extracted. The agave plant is not a cactus.