was bred by the Hop Research Institute in Hüll, in the center of the Hallertau with Hallertauer Mittlefrueh heritage. See hallertau hop region and hallertauer mittelfrueh (hop). It was released for commercial cultivation in 1993. This hop has an impressive cosmopolitan lineage in that part of its genetic stock is Galena, an American superalpha hop cultivar. Galena, in turn, is partially derived from Brewer’s Gold, a hop bred in England that can lay claim to a wild hop from the province of Manitoba in the Canadian Prairies as part of its ancestry. See brewer’s gold (hop) and galena (hop). With such a global pedigree, this hop seems to have amassed a veritable mosaic of desirable agronomic and brewing qualities, which is probably why Magnum gardens can now be found in all German hop-growing regions as well as in France, Poland, and the United States. In fact, Magnum is the primary high-alpha variety cultivated in Germany. It is a fast and efficient grower that matures medium-late to late in the season, produces a respectable average yield of approximately 2,750 kg/ha (roughly 2,250 lb per acre), and is fairly resistant to verticillium wilt and downy mildew. In the field, its only notable drawback is its susceptibility to powdery mildew (Podosphaera macularis), a shortcoming that led about a decade later to the introduction by the Institute in Hüll of the variety Herkules. See herkules (hop). With an alpha acid content of 11% to 16%, a beta acid content of 5% to 7%, and a cohumulone content of 21% to 29%, its bitterness values are very high, and it stores well after harvest and processing. In beer, Hallertauer Magnum is considered very versatile, contributing a pleasant and harmonic bitterness as well as a hop aroma of delicate, medium intensity with floral and fruity notes.
