Warsteiner beer is brewed in the Arnsberg Forest Nature Park outside of Warstein, Germany. Warsteiner has been a product of the Cramer family since 1753. Warsteiner is Germany's largest privately owned brewery, and its most popular beer is Warsteiner Premium Verum. Albert Cramer is the owner and managing director of Warsteiner, and has used his company to promote competitive hot air ballooning in Germany.
Warsteiner ranks number 4 among Germany's best selling breweries.