Tennessee whiskey is legally distinct from bourbon through the Lincoln County Process, in which new-make spirit is filtered drop by drop through sugar maple charcoal before entering barrels. This mellowing step imparts a smooth, slightly sweet character. Jack Daniel's in Lynchburg dominates production and is the world's best-selling American whiskey. George Dickel in Tullahoma offers a contrasting, slightly drier style and chills its spirit before charcoal filtering. Newer entrants include Nelson's Green Brier and Chattanooga Whiskey. Tennessee's climate, similar to Kentucky's, provides strong barrel maturation dynamics.