We have been brewing beer in the Czech Republic for a thousand years. The country, that has fewer inhabitants than Beijing or Tokyo, became a world power in the production of beer due to centuries of experience, unique technology and the careful selection of raw materials. It is 500 years since Duke Vilém IV realized the uniqueness and high potential of this beer. To protect it, he issued the ”Beer Purity Law”. The law sought to prevent the ”pollution” of the beer through the use of wheat, sugar, salt, herbs, as well as mushrooms and root vegetables.