Magnum Hops


Prized for its high bittering value. The aromatic nature is one of spice and citrus.

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Hop Qualities

Magnum Hops Flavor

A high alpha acid bittering hop with mild flavor and low aromatic characteristics.
Order Magnum Hops

Hop Growers of America Information

Magnum is a high alpha variety that was developed at the Hop Research Center in Huell, Germany. It is widely grown in the Hallertau region of Germany, and is also grown in the U.S. Magnum is a good bittering hop for Ales and Lagers.
Commercial Examples:
Ales, Lagers, IPAs
Acid Range (Alpha %)
12–15% 12–15%
Beta Range
26–28% of alpha acids
Total Oils
1.9–2.3 Mls. per 100 grams dried hops
30–35% of total oils
8–12% of total oils
35–40% of total oils
Possible Substitutions

USDA Magnum Hops Information

SELECTION: no information, except that the male parent is 50% Hallertauer mf (USDA 56001 or 21014)
GENUS: Humulus
SPECIES: lupulus
CULTIVAR: Hallertauer Magnum, also called Magnum
PEDIGREE: Galena (USDA 21182) x German male hop Nr. 75/5/3
PRIMARY SITE USDA-OSU hop yard, East Farm, Corvallis, OR
ORIGIN: German Hop Research Institute Huell, Germany
DATE RECEIVED: spring 1992
AVAILIBILITY: no restrictions, commercial cultivar
REFERENCES: Annual Report for USDA Hop Research 1992 and later years German Society for Hop Research Annual reports starting about 1980s
MATURITY: medium to medium late
LEAF COLOR: medium dark green
SEX: female
DISEASES: Downy mildew: resistant to moderately resistant
Verticillium wild: resistant
Powdery mildew: susceptible
Viruses: free of all 5 major hop viruses at time of receipt
VIGOR: very good
YIELD: very good
SIDE ARM LENGTH: 20 to 40 inches
ALPHA ACIDS: 12 to 17%
BETA ACIDS: 5 to 6%
COHUMULONE: 26 to 28%
STORAGE STABILITY: good to very good, retained over 90% of original alpha acids after 6 months storage at room temperature
OIL: 2.33 ml/100 g (4 year range: 1.2 to 3.7 ml/100 g)
Myrcene 60.5%; humulene 18.5%; caryophyllene 4.1%; farnesene trace H/C ratio = 3.50
MAJOR TRAITS: very high alpha acids content; good storge stability, low cohumulone content, very good yield potential
OTHER INFORMATION: Very large cones that tend to break up and shatter during picking. Some tendency to form angel cones (small leaflets in the cone which drives up leaf and stem data. The hop is a diploid, 2n= 20. This hop is the major high-alpha hop in Germany and is rapidly becoming the most widely grown hop in that country.


Magnum is a German thoroughbred with limited Pacific Northwest plantings. Prized for its high bittering value. The aromatic nature is one of spice and citrus.

Additional information

Weight 1.15 oz
Dimensions 1 × 2.5 × 2.5 in


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  • Nancy Scott

    Everyone who saw my garden wanted to know what that gorgeous plant was! Next year they will be covering a 20′ x 20′ purgola. Thanks again!

  • David R. Waite

    I wanted to tell you how extremely pleased I am with the quality of these hops! I have never purchased whole hops that look and smell this wonderful.
    Thanks for quick turnaround on the order, and for making hops of this quality and value available to fellow homebrewers.

  • Joe Harris

    I called you on a Friday and ordered 8 rhizomes. The following Monday, I received the order in the mail. You must have processed my order immediately for it to arrive that quickly, thanks! Special thanks to you for tremendous service, great products at great prices.

  • Robert

    Just from the feel, and smell, of these hops, I can say that (Greg Noonan’s recommendation) was right on the money… thanks for a great product!

  • John Boston

    As a 13 year home brew veteran, and former president of the Fellowship of Oklahoma Ale Makers, I must say your hops were the freshest and highest quality I have ever seen or smelled. I have been a Northern Brewer fan since visiting the Anchor Brewery in 1987, but I have never come across any Northern Brewer hops that rivaled those Anchor uses... until this batch arrived. The 4 oz of Cascade that came as part of your Value Pack were also a delight to behold.

  • Rick Oftel

    Just wanted to thank you again for the extremely fresh and prompt shipment of my last order.
    Just last evening, I brewed up a German style lager using the N.Z. Hallertauer and Magnum whole hops.
    Looking forward to many future purchases and just wanted to thank you for your attention to detail and also for allowing me the chance to make such great beer!

  • Sherry Leveque

    I received your root stock in record time and excellent condition. I am impressed.

  • Mitch K.

    I have worked at two of the three largest nurseries in America, but I can’t recall anything that has a more vigorous growth rate than these hops.
    I just wanted to say thanks for the fast service and viable rhizomes. You are a great company!

  • Curtis Hale

    I am writing to thank you for an excellent transaction.

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