Tequila, Jalisco products distilled from agave grown in certain regions of Mexico. These regions are Tequila and surrounding municipalities as well as parts of the State of Tamaulipas. The lands in Tamaulipas were added later as the need to cultivate blue agave grew, and these lands and the agave grown on them were certified by the Mexican government for quality. The term is also limited to fifteen production facilities such as Tequila Sauza, Tequila Orendaín, and Jorge Salles Cuervo. Long-established distilleries here produce between 500 and 1000 liters a day but this is not enough to meet the international demand for the
Tequila fruitier-tasting tequila, while lowland agaves give the tequila an earthier flavor. Unlike other tequila production steps, fermentation is one of the few steps out of the control of human beings. Fermentation is the conversion of sugars and carbohydrates to alcohol through yeast in anerobic conditions, meaning that oxygen is not present during the process. Fermentation is also carried out in a non-aseptic environment which increases the bacterial activity of tequila. The participation of microorganisms from the environment (yeasts and bacteria) makes fermentation a spontaneous process which gives rise to many byproducts that contribute to the flavor and aroma of tequila.