Jack Daniel's does use sour mash in the production of their whiskey. The term “sour mash” refers to the process of using a bit of previously fermented mash to start the fermentation of a new batch. This helps to ensure consistency in flavor and quality from batch to batch.
In the case of Jack Daniel's, their sour mash is created by taking a portion of the mash from a previous fermentation and adding it to the new batch. This starter mash contains yeast and other microorganisms that help to kick-start the fermentation process. By using a sour mash, Jack Daniel's is able to control the fermentation and create a more consistent and predictable product.
The mash, which consists of a mixture of grains such as corn, barley, and rye, ferments for a full six days. This allows the yeast to convert the sugars in the grains into alcohol, creating a liquid known as the “distiller's beer.” This beer is then distilled in a large copper still that is specifically made to Jack Daniel's exact specifications.
Unlike some other distilleries that may choose to double or triple distill their whiskey, Jack Daniel's only distills their whiskey once. This means that they vaporize the distiller's beer and then condense it back into a liquid. This single distillation process helps to retain the unique flavors and characteristics of the mash.
The use of sour mash and single distillation is a key part of Jack Daniel's production process and contributes to the distinct flavor profile of their whiskey. It allows for consistency and control in the fermentation and distillation, resulting in a high-quality product.
Personally, as a sommelier and brewer, I appreciate the attention to detail and craftsmanship that goes into the production of Jack Daniel's whiskey. The use of sour mash adds complexity and depth to the final product, while the single distillation process allows the flavors of the mash to shine through. It's fascinating to see how different distilleries approach their production methods, and Jack Daniel's commitment to their sour mash process is certainly commendable.
Jack Daniel's does indeed use sour mash in the production of their whiskey. This traditional method helps to ensure consistency and quality, and combined with the single distillation process, contributes to the unique flavor profile of Jack Daniel's whiskey.