Released in 1991, this aroma variety has very close similarities to the imported German aroma varieties. It ranks very close in comparison to Hallertauer Mittlefruh. It has been evaluated worldwide and has received very good feedback from both U.S. and German brewers. The result of a cross between the colchicine induced tetrapcoid female cultivar Hallertau mf and a downy mildew resistant male, USDA 64035M, in 1983. With very low cohumulone levels, and little farnesene in the essential oil. The Alpha Acid range is 3-5%. Liberty is quite similar to Hallertauer but much easier to grow. It is a half-sister to Ultra, Mt. Hood and Crystal. Mainly used for finishing in American and German ales and lagers.