Question: Is tequila gluten-free?
Tequila made in the traditional way entirely from the blue agave plant is naturally gluten-free. However, some cheaper brands of tequila are considered "mixto," or not entirely from the blue agave plant, and these might contain gluten — you'll need to contact the manufacturer to ask.
If the tequila bottle does not state "100% agave," then it's mixto, and contains added sugar and potentially gluten as well.
Realistically, even most cheaper tequilas will not contain gluten. But if you're particularly sensitive to gluten cross-contamination, you may want to stick to the higher quality (and unfortunately more expensive) 100% blue agave tequila — those tequila varieties should be completely gluten-free.