Originally selected by Charles Zimmerman for Hopunion, Inc., Columbus is a descendant of Nugget. It is a high alpha variety and is primarily used for bittering purposes. Columbus is often referred to as CTZ, a trio of similar hops including Tomahawk® and Zeus.
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Alpha Acid: 14.5 - 17.5%
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Beta Acid: 4.5 - 6%
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Co-humulone: 28 - 30%
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Total Oil: 2.5 - 4.5 mL/100g
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B-Pinene: 0.6 - 1% of total oil
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Myrcene: 45 - 55% of total oil
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Linalool: 0.4 - 0.6% of total oil
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Caryophyllene: 6 - 10% of total oil
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Farnesene: < 1.0% of total oil
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Humulene: 9 - 14% of total oil
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Geraniol: 0.2 - 0.5% of total oil