Why do they put worms in mezcal and what is the significance behind this practice?

Worms are sometimes put in mezcal as a marketing gimmick to attract attention and create a unique selling point. The practice originated in the 1940s as a way to distinguish mezcal from other spirits. The worm, typically a larva of the Hypopta agavis moth, is not traditionally found in mezcal and has no real significance in terms of taste or quality. It is more of a novelty or cultural curiOSity.