A one-year-old law narrowly defining "Tennessee whiskey" is leaving a bad taste in the mouth of some of the state"s distillers.

The new legislation requires all Tennessee whiskey to be fermented from a mash containing at least 51% corn, filtered through maple charcoal and aged in new oak barrels. This describes pretty much to a tee Jack Daniel"s own whiskey-making process, which is no coincidence, given that Jack Daniel"s parent company Brown-Forman had a hand in drafting the bill, according to Tennessee state Rep. Bill Sanderson.