Cluster Hops: Profile & Substitutions
Description
Cluster holds an unrivaled, legendary status as the literal foundation stone of American commercial hop agriculture, standing proudly as the oldest variety grown in the United States. Believed to have originated from a natural, spontaneous cross-pollination between an indigenous wild North American male hop and old-world European vines brought over by early Dutch and English colonists, it reigned supreme for generations. In its agricultural prime at the dawn of the 20th century, this incredibly resilient, high-yielding cultivar accounted for a staggering 96% of all domestic hop acreage, giving rise to regional offshoots like California Cluster and Yakima Cluster that remain largely indistinguishable from the master strain today. While modern super-alpha hybrids and flavor-forward varieties have since decreased its massive commercial footprint, Cluster remains an absolute icon of brewing history, highly prized by heritage craft brewers seeking an authentic, unadulterated link to classic American brewing traditions.
The sensory architecture of Cluster delivers a robust, old-school profile that beautifully prioritizes earthy, rustic, and clean botanical qualities over the aggressive tropical notes of modern craft hops. It presents a robust, comforting bouquet rich with deep garden soil, damp autumn wood, and wild field grass. This crisp, grounded quality is cleanly accented by a delicate layer of floral lavender, dried wildflowers, and a unique, dark-fruit undertone reminiscent of sweet blackcurrants and dried dark berries. Completely free from sharp resinous burn, heavy sulfur, or overbearing modern citrus, Cluster provides a beautifully balanced, clean perfume and a dependable bittering baseline that fills out the background of malt-forward worts and crisp heritage lagers perfectly.
At A Glance
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Profile
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Deep Garden Soil, Wild Field Grass, Lavender, Ripe Black Currant, Dried Wildflower, Sweet Blackcurrant, Dried Dark Berries |
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Purpose
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Dual: Aroma and Bittering |
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Alpha Acid
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5.5 - 9.0% |
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Substitutes
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Chinook, Eroica, Galena, Northern Brewer |
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Pairs with
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Cascade (to blend classic American grapefruit zest with old-school herbal depth), Northern Brewer (to anchor a deeply rustic/woody/and mint-spicy structural foundation), Willamette (to soften the herbal bite with a round/delicate/British-leaning floral note) |
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Beer Styles
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American Pre-Prohibition Lager, Cream Ale, California Common, Traditional Porter, Stout, Amber Ale, English Pale Ale |
General Information
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Country
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United States |
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Aliases
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Golden Cluster, Early Cluster, Late Cluster |
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Storage Stability
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Retains 80 - 85% alpha acid |
Brewing Chemistry (Acids & Oils)
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Alpha Acid
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5.5 - 9.0% |
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Beta Acid
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4.5 - 6.0% |
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Cohumulone
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36.0 - 42.0% |
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Total Oil
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0.4 - 1.0 ml/100g |
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Myrcene
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38.0 - 55.0% |
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Humulene
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15.0 - 20.0% |
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Caryophyllene
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6.0 - 10.0% |
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Farnesene
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< 1.0% |
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Linalool
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0.3 - 0.8% |
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B-Pinene
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0.5 - 0.7% |
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Geraniol
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0.6 - 0.9% |
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Xanthohumol
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0.3 - 0.5% |
Growth & Cultivation
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Yield
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1,420 - 2,100 lbs/acre |
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Maturity
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Medium to Medium-Late Season |
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Resistant
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Prunus Necrotic Ring-Spot Virus (PNRSV) |
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Tolerant
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Verticillium Wilt |
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Susceptible
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Downy Mildew, Powdery Mildew |
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Growth Rate
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Very High / Exceptional Vigor |
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Cones
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Medium-sized, highly compact, dense, and tightly clustered ovate structures. |
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Ease of Harvest
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Difficult (its characteristic tight, clustered cone groupings on the bines can occasionally complicate clean machine stripping) |
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Sex
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Female |
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Leaf Color
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Medium to Deep Gren |
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Side Arm Length
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24" - 36" (Medium to Long) |
Cluster Aroma/Flavor Profile
Last Updated
Source(s)
Hops Catalog