Question: are all tequilas 100 percent agave?
Answer: Tequila is made from blue agave, but it does not have to be 100% agave. Many tequilas will advertise themselves as '100% Blue Agave,' but the legal requirement is 51%. Distillers are allowed to fill out the rest with a neutral spirit made from cane sugar juice, creating what is known as a “mixto” tequila.