Cluster (US) is thought to be one of the oldest and most robust hop crops in the US. With its balanced aroma and bittering profile and outstanding storage stability, it has long been a go to hop of large commercial breweries in the US. So prolific was Cluster’s use in fact that at the beginning of the 20th century Cluster accounted for 96% of the total acreage of hops grown in the United States. Cluster remained at the top right through until the 1970’s.
The exact lineage of Cluster is unknown and is considered to have a clean, neutral and slightly floral flavor.
|Also Known As|
|Characteristics||Clean, neutral, slightly floral|
|Purpose||Bittering & Aroma|
|Alpha Acid Composition||5.5%-9%|
|Beta Acid Composition||4%-6%|
|Yield Amount||1600-2140 kg/hectare (1420-1900 lbs/acre)|
|Growth Rate||Very high|
|Resistant to||Resistant to prunus necrotic ring-spot virus|
|Susceptible to||Susceptible to downy mildew and powdery mildew|
|Storability||Retains 80%-85% alpha acid after 6 months storage at 20ºC (68ºF)|
|Ease of Harvest||Difficult|
|Total Oil Composition||0.4-0.8 mL/100g|
|Myrcene Oil Composition||38%-55%|
|Humulene Oil Composition||15%-20%|
|Style Guide||Barley Wine, Porter, English Pale Ale, Amber Ale, Honey Ale, Cream Ale, American Lager|
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