Jack Daniel's Single Barrel Vs Old No. 7: What's The Difference? - Tasting Table

"Jack Daniel's Single Barrel refers not to a single whiskey, but to a collection of them. The Single Barrel brand includes Single Barrel Select, the Single Barrel Rye, and a 'Barrel Proof' variant that clocks in at a hefty 65.45% ABV."

"Old No. 7's production method guarantees every bottle shares a uniform taste, while the Single Barrel line is drawn from individual barrels. These barrels have been exclusively aged on the top floors of the brand's barrelhouses in Lynchburg, Tennessee."

"Single Barrel Select is often even sweeter, redolent with notes of caramel, honey, and cherry cola. One critic even compared it to a Tootsie Roll."

Jack Daniel's Old No. 7 is a well-known whiskey, while Jack Daniel's Single Barrel represents a collection of distinct whiskeys. The Single Barrel line includes variants like Single Barrel Select and Single Barrel Rye, with the latter being the first new grain bill in 150 years. Old No. 7 has a consistent taste due to the Lincoln County Process, while Single Barrel whiskeys are drawn from individual barrels, resulting in unique flavors. Single Barrel Select is sweeter than Old No. 7 and is typically more expensive.

Read at Tasting Table