Father and son duo, Berry and Denny Foster, opened Main & Mill as a neighborhood brewery — and it’s become a steadfast pillar of Festus, Missouri. Located in a brick tavern built in the 1880s, the rotating beer selection reflects head brewer Denny’s ever-evolving inspiration and methodical experimentation. Main & Mill’s tendency to skirt tradition has Sauce Magazine calling them “one of the best-kept secrets in St. Louis beer.”