Bred in 1983 by the USDA, Crystal is a triploid aroma-type cultivar from Hallertau Mittelfrüh, Cascade, Brewer's Gold and Early Green. It is primarily grown in Oregon and has become increasingly popular among craft brewers due to its versatility in a variety of beer styles. Aroma: Specific aroma descriptors include woody and green. HopUnion US Pellets Hops for Home Brew Beer Making - 1 Ounce (US Crystal), Country of origin - United States, Manufacturer name - L. D. Carlson.