American whiskey labeled as one of these types, the whiskey must be distilled to no more than 80% alcohol by volume (160 U.S. proof) to ensure the flavor of the original mash is adequately retained, and the addition of coloring, caramel, or other flavoring additives is prohibited. All of these, except corn whiskey, must be aged at least briefly (although no minimum aging period is specified) in charred new oak containers. These restrictions do not exist for some similarly named products in some other countries, such as Canada. American corn whiskey does not have to be aged at all – but, if
Tennessee whiskey in Plainfield, Illinois, for filtering with charcoal made at the Dickel distillery and then bottling. In early 2014, the brand introduced a white corn whiskey using an unaged version of its standard mashbill, which consists of more than 80% corn, allowing for its sale as "corn whiskey". The bottle makes no reference to Tennessee whiskey. Production began in 2012 of a Jack Daniel's Tennessee Rye. As it is 70% rye, it is not labeled as a Tennessee whiskey. A limited initial release that was not aged in wood was labeled "Spirits Distilled from Grain". A second limited release, called "Rested