Jack Daniel’s Unaged Tennessee Rye ack Daniel’s Unaged Tennessee Rye is Jeff Arnett’s exploration into the intriguing flavor drawn from premium rye. It's the first time since before Prohibition the Jack Daniel Distillery has used a new grain recipe. Rye has always been part of the Jack Daniel’s Old No. 7 grain bill but it has never been the lead grain until now. When our tasters sampled it after distillation, they said this should not wait to be released. Jack Daniel’s Unaged TN Rye is offered only in a small batch and in limited supply so the majority of the new rye whiskey can mature in Jack Daniel’s barrelhouses for future release.