Maestro Dobel Tequila Maestro Dobel Tequila Maestro Dobel Diamond Tequila is a blended tequila produced by Proximo Spirits. It is the first ever multi-aged clear tequila. Dobel was created by and named after Juan-Domingo "Dobel" Beckmann. Beckmann was the eleventh-generation leader of Jose Cuervo tequilas, in collaboration with master distillers ("Maestros") Marco Anguiano and Luis Yerenas. It was introduced in 2008. Dobel is a blend of reposado, añejo and extra añejo tequilas, aged one, two and three years, respectively, in European white oak barrels, and then filtered to remove all color. The tequilas in the blend are distilled from 100% blue agave from
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.