Jack Daniel's motto was "Everyday we make it, we'll make it the best we can". For him, that meant filtering his whiskey drop by drop through a three-meter-thick layer of charcoal from the sugar maple. Seven generations later, the whiskey is still filtered the same way Jack did back then. The reason: Filtering gives it a distinctive mildness that has come to be expected from Jack Daniel's. Charcoal mellowing makes Jack Daniel's what it is: not a bourbon, but a Tennessee whiskey. This process refines the full flavor of the whiskey, even before it is fully aged in barrels, of Jack Daniel's own manufacture. A laborious process that requires special attention and makes the production of the whiskey a little more expensive. However, any other process would not have met with Jack's approval. Now the Jack Daniels is available packaged in a letterbox. Tasting notes:Jack Daniel's, the iconic brand with cult status, has been produced in America's oldest registered distillery since 1866. Jack Daniel's is enjoyed neat, on the rocks or in a mix. Drop by drop, the brandy seeps through a meter-thick layer of charcoal, which makes its taste unmistakably round, mild and characteristic.