Jack Daniel's 1LTO.

The Bourbon Jack Daniel has a distinctive character. It is filtered drop by drop through mellow charcoal. Then let it rest and the effects of age make a dent in their own handmade barrels. Jack Daniels is not allowed to stand for a certain time in the barrels, but it is the tasters who determine when it is ready. So they used the senses, just like Jack Daniel himself did.

In fact, more than a century later, our Tennessee Whiskey still has the same criticism as the original.