History: Though closely related to bourbon, Tennessee whiskey was officially designated a unique type by the federal government in 1941, largely because it uses a filtration method called the Lincoln County Process

Specifics: Same as bourbon, except that it must be made in Tennessee and filtered through a bed of charcoal chips made from sugar maples before entering a cask

Where it's from: Tennessee

How it tastes: Like bourbon, but with a smoother finish that results from charcoal filtering

Common brands: Jack Daniel's, George Dickel