When Kevin Wright, founder and brewmaster at Third Space Brewing, created Mystic Knot, a barrel-aged beer timed for St. Patrick’s Day, he imagined a beer that tasted like an Irish coffee, with notes of coffee, more than a hint of whiskey and a bit of cream.

Nailed it.

Third Space will release Mystic Knot and a variant called Mystic Cortado on Saturday. Bottle sales begin at 11 a.m. at the brewery, 1505 W. St. Paul Ave. Bottles cost $20 each.

“I’ve had this concept rolling around in my head for a long time,” Wright said. He originally used Jameson-infused barrels to age the beer but found that “there was almost no character” to the beer after two months. He moved the beer to used Heaven Hills bourbon barrels.

Mystic Knot is made with a cream stout beer base and Three Volcanoes Guatemalan coffee from Stone Creek Coffee. Mystic Knot comes in a 750-milliliter bottle.

Wright said the coffee component is added to the finished fermented beer hours after it’s roasted. Mystic Knot contains nearly two pounds of coffee per barrel. Mystic Cortado has more than two pounds of coffee per barrel.

“This is not a beer to sit in your cellar for two years,” Wright said. Drink now for the best notes of coffee blended with the Imperial Cream Stout.

When the bottles go sale Saturday, there will be a six-bottle-per-person limit on Mystic Knot and a one bottle per-person limit on Mystic Cortado.

The beers will be available on tap at the brewery Saturday. Mystic Knot also will be available on tap at taverns that carry Third Space and at the brewery on March 17 as part of St. Patrick’s Day events. The limited-release Cortado will be available on tap at the brewery this Saturday only.

Doors open at 11 a.m. on Saturday. Stone Creek Coffee will have coffee for sale for those standing in line and will include cold versions of the brews used in Mystic Knot and Mystic Cortado as part of a flight that includes each beer. A portion of the proceeds will go to Children’s Hospital of Wisconsin. Taqueria La Guacamaya food truck will be at the brewery.

On March 17, the brewery opens at 9 a.m. with Press Waffles food truck on the grounds in the morning and Blue Cow Creperie in the afternoon. The first 125 people who order a pint will get to keep a specialty Third Space St. Patrick’s Day pint glass.

Third Space also releases Java Blanca, a cream ale made with two kinds of Stone Creek coffee on Wednesday. It will be available in cans at retailers on Monday.