Jose Cuervo Tradicional Tequila Plata

40% alcohol. 100% agave. Introduced in 1978. Produced in Mexico. "Tradicional® Silver is 100% blue agave silver tequila. It is irresistibly refined. When bottled, a special process is used to conserve its flavor and finish at freezing temperatures. This means that it can, and should, be kept chilled in the freezer and served as a crisp, smooth, frozen shot." https://cuervo.com/products/tradicional-tequila-plata/