CLUSTER Alpha acid 6-9% Ref: HOPCLUST0609 BREWING QUALITY An excellent general purpose hop with medium and well balanced bittering potential and a very deep fruity aroma. Gives great depth of character with a strong hop/fruit aroma. ORIGIN / HISTORY US origin. Not known but possibly the result of a cross between an English variety and an American male hop. The standard US cultivar was improved by mass selection in the mid 1960s. AGRONOMICS Very susceptible to downy mildew but not seriously affected by Prunus necrotic ring-spot virus. ACID COMPONENTS Alpha Acids 6 - 9% w/w Beta Acids 4.5 - 5.5% w/w T90 Hop Pellets Cohumulone 36 - 42% of alpha acids OIL COMPONENTS Total Oil 0.4 - 0.8 mls/100 grams Caryophyllene 6 - 7% of whole oil Farnesene <1% of whole oil Humulene 15 - 18% of whole oil Myrcene 45 - 55% of total oil Leaf Hops Possible Substitutions: Willamette, Galena