In a city with such strong ties to Hispanic culture, even individuals in the minority without a Latin lineage are generally familiar with and typically embrace a wide range of Mexican imports and cultural practices. However, one product that continues to perplex Gabachos, whose stomachs turn at the mere thought, is the worm at the bottom of the tequila bottle.
There are two immediate misconceptions that should be addressed (1) it's not tequila (2) it"s not a worm. The liquor traditionally (if anything dating back to the 1950s can be considered 'traditional’ Mexican) accompanied by the deceased critter is tequila’s cousin- mezcal. Both liquors are made from varieties of the agave plant; however, tequila is made only from blue agave and mezcal can be made from five different varieties. Mezcal is generally a tad stronger in alcohol content.
The ‘worm’ is actually a larva of one of two kinds of insects- the agave snout weevil and the hypopta agavis moth both that can be found in the agave plant. The larva is said to enhance the flavor of the mezcal and also to have aphrodisiac properties. Arguably, the most advantageous purpose is the extra kick you get from the high alcohol concentration absorbed in its little body.