What does 100% Blue Weber agave tequila mean?

The regulations that govern tequila allow for two “classes” of tequila: The first, known simply as “tequila,” is sometimes referred to as “mixto” tequila because it is made from a mixture of agave sugar and added grain or cane sugar.

The second class is “100% de Agave” tequila, which is made exclusively from the sugars of the Blue Weber Agave. PATRÓN Tequila only makes 100% Blue Weber Agave tequila.