A single bottle of Jack Daniel’s takes roughly 4 years to make. Follow me through the entire process here! We start in the fermentation room where there are large vats full of yeast, corn, rye, and barley. The yeast will eat the sugars in the grains and make ethanol and carbon dioxide gas. Next up, the mash goes through a still where the alcohol is evaporated and then cooled into 140 proof CLEAR WHISKEY. Essentially this is moonshine. From there, every drop is filtered (they call it mellowing) t