Jack Daniel's Tennessee whiskey is the top-selling American whiskey in the world. Interestingly, Jack Daniel's home county of Moore is a dry county, so the product is not available for purchase at stores or restaurants within the county.
Although Jack Daniels meets the regulatory criteria for classification as a straight bourbon, it is marketed as Tennessee whiskey rather than as Tennessee bourbon. As defined in the North American Free Trade Agreement, Tennessee whiskey is classified as a straight bourbon authorized to be produced in the state of Tennessee. Additionally, Tennessee law further requires most producers of Tennessee whiskey to filter the spirit through charcoal made from maple prior to aging, in addition to meeting the above requirements. This is known as the "Lincoln County Process".