Red Oak is a brewing company in Whitsett, NC. Originally started as a brewpub in Greensboro, NC, Red Oak produces only unfiltered, unpasteurized Bavarian Style lagers. All Red Oak beer is made according to the 1516 Bavarian Purity Law known as the Reinheitsgebot. Red Oak is one of the most widely distributed craft beers in North Carolina, and is also the largest craft lager only brewery in the United States.