The fine aroma variety Saaz from the Czech Republic is appreciated as number one aroma hops in the world. Czech Republic is the largest producer of fine aroma hops. Hops are grown in 3 regions - Saaz, Auscha and Tirschitz. Zatecky chmel (Saaz hops) is now listed as Protected Designation of Origin.
Hop Growers Union represents the Czech hop growers, it is also the founder of the Hop research institute which focuses on breeding, plant protection and cultivation technology.