The Kuhnhenn Brewing Company is a small microbrewery, winery and meadery in Warren, Michigan, United States. They have several beers rated in the top 100 in the world on beeradvocate.com and ratebeer.com. The business was established in 1998, but did not open its doors until 2001, by owners and brewers, the brothers Bret and Eric Kuhnhenn.