Challanger Most widely used for their aromatic properties, UK Challenger hops can act as a bittering agent in your brew, as well. These hops make a great choice for early and late kettle additions, that contribute a spicy, woodsy cedar, and green tea character to any type of Ale. You can also get crisp fruity notes with late kettle additions. This is a granddaughter of Northern Brewer, with lineage also including Target and Northdown. Style Guide Golden Ale, Barley Wine, Imperial Stout Hop Statistics Alpha Acids: 6.5 – 9.0% Beta Acids: 3.2 – 4.2% Alpha-Beta Ratio: 1.5 – 2.8 Cohumulone: (% of alpha acids): 20 – 25% Total Oils in mls per 100 grams dried: 1.0 – 1.5 Storage(% alpha acids remaining after 6 months storage at 20° C): 70 - 85% Similar Hop Varieties Perle, Northern Brewer.