Weldwerks Brewing Co. has chosen the week of this year’s Great American Beer Festival to release two brand new versions of its popular Medianoche stout.

The first new variant will be Medianoche Premier, Vol. 1, an imperial stout composed of a blend of stouts aged in nine different barrels holding five different types of spirits ranging in age from 15 to 23 months. According to a Facebook event page post, while the average age of the final beer is “almost exactly 19 months,” the breakdown of the blend is as follows:

  • 22 percent double barrel-aged for a total of 20 months. First in 8-year-old bourbon barrels for nine months, then in 11-year-old bourbon barrels for 11 months
  • 22 percent aged for 16 months in 12-year-old apple brandy barrels
  • 11 percent aged for 23 months in 12-year brandy barrels
  • 11 percent aged for 23 months in 10-year-old rye whiskey barrels
  • 11 percent aged for 21 months in 14-year-old bourbon barrels
  • 11 percent aged for 19 months in 10-year-old bourbon barrels
  • 11percent aged for 15 months in 12-year-old Jamaican rum barrels

In addition, Weldwerks will be releasing Malibu Medianoche, an imperial stout aged in Jamaican rum barrels for “more than 15 months” and conditioned on more than of Madagascar vanilla beans as well as 1 1/2 pounds per gallon of both toasted and raw coconut. This specific Medianoche was released as a draft-only option for the Greeley, Colo.-based brewery’s third anniversary, but this is the first time it has been bottled.

Although pricing and purchase limits have not yet been announced, comments on Weldwerks’ Facebook page indicate that it will not be a ticketed release and that there should be enough bottles “to last most of the day, if not all day” when both stouts are released on Oct. 3 exclusively at the brewery.