Kräftig stands apart from craft beer and other lagers, he says, by adhering to Reinheitsgebot, the German beer purity law that restricts ingredients to water, barley, yeast and hops.

Busch is the great-grandson of Anheuser-Busch founder Adolphus Busch, but he never worked at A-B. Billy Busch says he founded Brentwood-based William K Busch Brewing to create another chapter in the family’s brewing history following the 2008 sale of St. Louis-based A-B to InBev.

Kräftig is currently produced at the City Brewing Co. in La Crosse, Wis., and Busch said he continues to scout for property in the St. Louis region to build his own brewery.

Busch is seeking to take full ownership of the family-owned Grant’s Farm animal park in south St. Louis County to keep it in the Busch family and build a small brewery for production of draft beer on a portion of the land, he said. If he buys the Grant’s Farm property, Billy Busch said he’d still pursue building a larger Kräftig brewery elsewhere in St. Louis.