All tequila is made from three things: Blue Weber agave, water, and yeast. But according to Grover Sanschagrin, a leading additive-free tequila expert, there may be something else in that bottle of ...

The conversation has shifted to highlight producers that omit glycerin, sweeteners, and other additives in their product. But is additive-free the only indicator of quality? In 2012 Grover and Scarlet ...