Toolbox Brewing Co. is turning to blackberries and maybe a little witchcraft for its latest sour, Berry Bewitching.

According to the beer label filed with the Alcohol and Tobacco Tax and Trade Bureau (TTB), Berry Bewitching is a “Sour Blonde Artisanal Wild Ale Fermented with Blackberries.” The 5.25 percent ABV ale is made with brettanomyces and house cultures.

Berry Bewitching will be sold in 750ml bottles.