Mezcal is a distilled alcoholic beverage made from agave plants. It is produced in Mexico, and the most common type of mezcal is made from the blue agave plant. Mezcal is typically smoky in flavor, and it can be enjoyed neat, on the rocks, or in cocktails.Mezcal is a distilled alcoholic beverage made from agave plants. It is produced in Mexico, and the most common type of mezcal is made from the blue agave plant. Mezcal is typically smoky in flavor, and it can be enjoyed neat, on the rocks, or in cocktails.