Tennessee whiskey, a type of whiskey associated with the state of Tennessee in the United States, has a unique flavor and process of production. It is known for its sweetness and smoothness, which is derived from the Lincoln County process, where the whiskey is filtered through charcoal before it is aged in barrels. Additionally, it is also regulated by law, where it must be produced in Tennessee and must be aged for a minimum of two years. Some of the synonyms for Tennessee whiskey are sour mash, smooth bourbon, charcoal-filtered whiskey, sweet corn whiskey, and oak-aged whiskey. Despite the various synonyms, Tennessee whiskey remains a distinct type of spirit that is enjoyed worldwide.