Saaz is a "noble" variety of hops. It was named after the Czech city of Žatec (German: Saaz). This hop is used extensively in Bohemia to flavor beer styles such as the Czech pilsener. Saaz hops accounted for more than 2⁄3 of total 2009 hop production in the Czech Republic. It is the main hops variety used in the production of global beer Stella Artois.
Saaz has a very distinctive flavour. When used in beer, the resultant aroma is very mild, earthy, herbal and spicy. Despite its popularity and noble pedigree, Saaz generally has a very low Alpha Acid level and is not very effective as a bittering hop. This hop is generally used for Bohemian style lagers and pilseners.
Another variety of Saaz hops has been propagated in the United States of America. The US variety has a higher Alpha Acid content than the original Czech variety.