Science Uncovers the Secrets of Tennessee Whiskey

Champagne is only champagne if it’s made in its namesake region in France, Scotch is exclusively distilled and matured in Scotland, and a “bourbon” label is reserved for products from the United States. And there’s one variation on the bourbon recipe — Tennessee Whiskey — that’s made exclusively in, well, Tennessee. You might be familiar with its largest maker, Jack Daniels.But Tennessee whiskey isn’t just bourbon distilled across a state line. (95