Next Saturday is Pi Day 2020 and to commentate the occasion, Westbrook Brewing Co. has released a brand new beer.

Key Lime Pi is a 5 percent ABV “pastry sour” ale brewed with key lime pies at a ratio of 22 pies per seven bbl of beer. The new ale is being released to celebrate Pi Day, the annual day held on March 14 that is named after the symbol in mathematics used to represent a constant, like the ratio of the circumference of a circle to its diameter.

According to a post on Westbrook’s Instagram page, Key Lime Pi is packaged in four-packs of 16-ounce cans that are available at the brewery now. In addition, cans are also now shipping to retailers across the brewery’s distribution network.