As tequila is produced, there are byproducts much like any other distilled spirit.  Here in the states, the EPA has pretty strict rules regarding how the byproducts are handled and disposed of.  Looks like things are a little different south of the border. For every liter of tequila produced, distilleries throw away 10 liters of hot liquid waste (called vinaza), as well as 5 to 6 kilos of fibrous agave plant (called bagasse).  Government...