What is a common characteristic of Don Julio tequila?

A defining characteristic of Don Julio tequila is that it is made from 100% blue agave. This distinguishes it from many other tequilas, which may use a blend of blue agave and other sugars. The use of 100% blue agave is crucial because it influences the flavor profile, quality, and authenticity of the tequila. This particular agave plant is known for producing high-quality tequila with a rich and smooth taste.

The other options do not accurately reflect the specific characteristics associated with Don Julio. For instance, while many tequilas are bottled at 80 proof, not all expressions of Don Julio adhere strictly to this level. The tequila is not flavored with chocolate, as this would steer it away from traditional tequila profiles, and it is not exclusively sold in Mexico, as Don Julio can be found in markets worldwide. Therefore, the hallmark of Don Julio's quality lies in its commitment to using 100% blue agave.