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.

Substitution Tip

If you can't find Density, the best alternatives are Defender, East Kent Golding, or Fuggle.

At A Glance

ProfileDried Wild Herbs, Steeps Black Tea, Cedarwood Shavings, Ground Wood Spice, Fresh Forest Floor
PurposeAroma
Alpha Acid4.4 - 6.6%
SubstitutesDefender, East Kent Golding, Fuggle
Pairs withEast 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 StylesEnglish 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)

Discovery Tags

Usage

Last Updated
  • 2026-06-03 13:59:41