Jack Daniel's says its namesake is now 165 - here's how they make so much whiskey in a 149-year-old distillery

While there are no birth records for Jack Daniel, it's customary to celebrate the founder's birthday in September.

The distillery was founded when Jasper Newton "Jack" Daniel ran away from home and started making whiskey with a Lutheran Minister when he was about seven years old.

"Church people started talking about how the minister was working for God on Sunday and then making liquor on Monday. In order to keep the church family happy the Minister sold the business to Jack for $25," distillery tour guide Jesse James told Business Insider.

Despite being one of the most valuable alcohol brands in the world, Jack Daniel's is only manufactured in a 149-year-old distillery in Lynchburg, Tenn., a site named on the US Department of the Interior's Register of Historic Places.

The 1,700-acre operation has around 435 workers and ships out 119 million bottles in a year.

We took a tour to see how the whiskey is made.