In this May 20, 2009, file photo, Jeff Arnett, the master distiller at the Jack Daniel Distillery in Lynchburg, Tenn., tests the aroma of whiskey at the distillery. Jack Daniel's is fighting efforts in the state Legislature to dial back the legal definition of Tennessee whiskey, including a provision that requires the spirit to be aged in new oak barrels . (AP Photo/Mark Humphrey, File)NASHVILLE, Tenn. (AP) — If it isn't fermented in Tennessee from mash of at least 51 percent corn, aged in new charred oak barrels, filtered through maple charcoal and bottled at a minimum of 80 proof, it is...