Just one day after brewing a collaboration with de Garde Brewing and Sante Adairius Rustic Ales, Jester King Brewery was at it again.

“Our spontaneous culture was pitched, along with native yeast from Wolves & People Farmhouse Brewery, into wort brewed with Oregon douglas fir and Texas ruby red grapefruit,” reads a post on Jester King’s Facebook page.

Jester King Brewery on Twitter

Brewed w/ @wolvesandpeople. Spontaneous culture pitched into wort brewed w/ OR douglas fir & TX ruby red grapefruit. pic.twitter.com/tMWBApr4oY

This is actually the second collaboration beer that Jester King has brewed in the past week that incorporates Texas ruby red grapefruit, after the Austin, Texas-based brewery collaborated with Woodfour Brewing Co. in Sebastopol, Calif. on Jan. 29. That beer is a  “low/medium gravity” farmhouse ale included ruby red grapefruits, wheat malt from Blackland Malt Co. and a combination of yeast from both breweries.

An email sent to both breweries for additional information was not returned.