A brawl over the definition of Tennessee whiskey is unfolding between two whiskey giants, according to The Tennessean. Under a state law passed last year, Tennessee whiskey “must be made from fermented mash of at least 51 percent corn, aged in new oak barrels, charcoal mellowed and stored in Tennessee.” Jack Daniel Distillery pushed hard for this law as a measure to protect their market share, but now London-based liquor company Diageo, who owns George Dickel, is fighting to change the law in order to reuse old barrels. They’ve argued that the current law stifles innovation and likened it to what Anheuser-Busch did to beer when they claimed their recipe as the only “American beer.” [The Tennessean]