There is a first time for everything, and Jester King Brewery can knock another few achievements off of its list.

The Austin, Texas-based brewery has blended and bottled its first 100 percent spontaneously fermented beer. Although it still does not have a name, the beer is composed of a three-year vertical blend of beers that were brewed and put into the brewery’s coolship in 2013, 2014 and 2015 to gather native microorganisms naturally before then being aged in oak barrels.

Jester King Bottles First 100 Percent Spontaneously Fermented Beer 1

The beers will spend between six to nine months refermenting in the bottles before they are released.

“The blend will condition in bottles and kegs for quite some time,” says a post on Jester King’s website. “One often overlooked component of farmhouse ales and spontaneously fermented beers is the importance of the time the beer spends refermenting in the serving vessel. Why are we committing so much time to a beer that’s already partially three years old? “Magical” things happen in the bottle over time! As the yeast struggles to survive in a hostile environment that’s low in nutrients, higher in alcohol, lower in pH, and that has pressure building from the CO2, it tends to behave differently and produce some very interesting flavors and aromas.”

Jester King 100 Percent Spontaneously Fermented Beer 2

The beer will be packaged in both 375ml and 750ml bottles. The green bottles mark the first time Jester King has used both a cork and cap.