Per LB CAD
Cluster 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.
Alpha - 5.5% - 9%
Descriptions provided by the awesome Hopslist.com