What does 100% Weber Blue 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 Weber Blue Agave. PATRÓN Tequila only makes 100% Weber Blue Agave tequila.