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Density Hops
AromaAlpha 4.4 - 6.6%United Kingdom
Density stands as a rare, mid-20th-century British aroma cultivar bred under the scientific guidance of Dr. R.A. Neve at the acclaimed Wye College in Kent, England. Officially developed in the 1950s and cataloged under the selection code Ref. 2/51/71, this intriguing variety was meticulously selected as an agronomically distinct sibling to the Defender hop. By taking a robust, wild female landrace hop originating from New Mexico, USA, and crossing it with an open-pollinated male descendant of traditional English stock—including the historic Eastwell Golding—breeders successfully fused the unique genetic vigor of wild New World material with the soft, delicate aromatic properties required by traditional British ale houses. Built specifically to deliver excellent localized plant health in the field and exceptional resistance to Verticillium wilt, Density ultimately failed to maintain long-term commercial cultivation due to low alpha acid content and light field yields, though it remains a fascinating window into early Anglo-American hybridization programs.
The profile of Density is a beautifully understated sensory experience that effortlessly captures the essence of mid-century English brewing with classic noble restraint, completely trading loud, modern citrus for quiet poise. It yields a pristine, rustic bouquet characterized by dried wild herbs, fresh forest floor, and a warm, woody-spicy background. Beneath this crisp botanical layer, the essential oil matrix reveals a deeply grounded, earthy character reminiscent of steeped black tea leaves, sweet cedarwood shavings, and mild tobacco leaf. Remarkably clean, soft, and delicate on the senses, Density produces an elegant, refreshing perfume that seamlessly elevates traditional top-fermented beers and historic grain bills without ever drifting into sharp resinous, diesel-dank, or heavy sulfur notes.
If you can't find Density, the best alternatives are Defender, East Kent Golding, or Fuggle.
At A Glance
| Profile | Dried Wild Herbs, Steeps Black Tea, Cedarwood Shavings, Ground Wood Spice, Fresh Forest Floor |
|---|---|
| Purpose | Aroma |
| Alpha Acid | 4.4 - 6.6% |
| Substitutes | Defender, East Kent Golding, Fuggle |
| Pairs with | East Kent Golding (to amplify a bright/flowery citrus top note over the noble base), Fuggle (to weave a deeply historic/rustic herbal-tea complexity), Progress (to ground a crisp/spicy traditional German foundation) |
| Beer Styles | English Pale Ale, Traditional Bitter, Mild, Historical Porter, European Lager |
General Information
| Country | United Kingdom |
|---|---|
| Alias | USDA 62052 |
| Storage Stability | Retains 72% alpha acid |
Brewing Chemistry (Acids & Oils)
| Alpha Acid | 4.4 - 6.6% |
|---|---|
| Beta Acid | 3.3% |
| Cohumulone | 36.0% |
| Total Oil | 0.44 ml/100g |
| Myrcene | 57.0% |
| Humulene | 17.0% |
| Caryophyllene | 7.0% |
| Farnesene | 0.3% |
Growth & Cultivation
| Yield | 1,000 - 1,400 /acre |
|---|---|
| Maturity | Mid Season |
| Resistant | Verticillium Wilt |
| Growth Rate | Moderate to High |
| Cones | Small to medium size |
| Sex | Female |
| Leaf Color | Dark Green |
| Side Arm Length | 12" - 20" (Short) |
- 2026-06-03 13:59:41