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.
Alpha Acid: 14.5- 20%
Beta Acid: 4.6-5.6%
Cohumulone: 28-30%
Uses: Mainly as a bittering hop but can be used as a late addition for Amnerican style IPA's
Aroma: Specific aroma descriptors include black pepper, licorice, curry, sherbert and subtle citrus.