Hill Farmstead Brewery fans will be able to purchase a new Genealogy variant next week, but only in 750ml growlers.

That beer is Genealogy: Coffee Collective—Kieni, an stainless-conditioned coffee imperial stout conditioned on Kieni coffee beans from Nyeri, Kenya that were sourced and roasted by The Coffee Collective in Copenhagen, Denmark. The new variant uses the Greensboro, Vt.-based brewery’s Genealogy imperial stout as its base.

Hill Farmstead has incorporated The Coffee Collective’s coffee into a number of different beers, including: Genealogy of Morals – Coffee Collective: Akmel Nuri, an imperial wheat stout aged in “select bourbon barrels” for 20 months before being conditioned on Akmel Nuri’s Ethiopian coffee beans; Edith: Alaka, a 6 percent ABV “Dark Farmstead® ale” conditioned on Alaka coffee grown in the Guji region of Ethiopia; and Genealogy of Morals: Rum Barrel—Coffee Collective: Duver Rojas, a wheat imperial stout aged for more than 16 months in barrels that previously held Privateer rum before being conditioned on coffee from the Las Delicias farm in Huila, Colombia.

According to a post on Hill Farmstead’s website, Genealogy: Coffee Collective—Kieni will be available packaged exclusively in 750ml growlers priced at $20 when it goes on sale on Oct. 9.