So Blue Agave is for Tequila (in the barrels below), and Green Agave is for Raicilla alcohol (in the big tank). This tequila is made right there in this place, and they seem not to use any chemicals. Also the person there mentioned that they only use Agave alcohol , as opposed to cheap tequilas that can use quite a bit of sugar cane alcohol. Still the bottle was only 350 pesos for an aged tequila.