CHALLENGER Alpha acid 6-9% Ref: HOPCHAL0609 BREWING QUALITY An excellent all round hop with good alpha and aroma properties. As the main copper hop, it provides a refreshing, full bodied, rounded bitterness, which makes an excellent platform for a late hop. As the late addition, it can give a very crisp, fruity character which has proved very popular in many beers. ORIGIN / HISTORY UK origin. Introduced by Wye College in 1972. AGRONOMICS Good resistance to downy mildew but is susceptible to powdery mildew and Verticillium Wilt. ACID COMPONENTS Alpha Acids 6 - 9% w/w Beta Acids 3.2 - 4.2% w/w T90 Hop Pellets Cohumulone 20 - 25% of alpha acids OIL COMPONENTS Total Oil 1.0 - 1.5 mls/100 grams Caryophyllene 9.52% of whole oil Farnesene 1.73% of whole oil Humulene 29.52% of whole oil Myrcene 30.49% of total oil Leaf Hops Possible Substitutions: Northdown, Northern Brewer, First Gold