Schaefer Beer is a brand of American beer first produced in New York City during 1842 by the F. & M. Schaefer Brewing Company. The company relocated to Brooklyn in the early 20th century. It went public in 1968 with a $106 million stock offering.

In order to expand capacity for regional sales and fend off competition from national brands, Schaefer began construction of a large modern brewery in Breinigsville, Pennsylvania