Janus Hops

AromaAlpha 4.5 - 7.0%United Kingdom

Janus is a fascinating relic of the mid-century British hop industry, representing a sophisticated attempt to balance "New World" vigor with "Old World" grace. Developed in the 1950s at Wye College by the legendary Professor Salmon, Janus was bred from a complex lineage including New Mexican wild hops, Eastwell Golding, and various traditional English varieties. While it was created during a time of agricultural crisis to provide resilience against Verticillium wilt, it was eventually phased out due to low yields and has never been utilized in subsequent breeding programs. Today, it stands as a testament to the early days of scientific hop breeding and remains a prized discovery for those recreating authentic, pre-modern British ales.

The profile of Janus is an understated and classic arrangement of the English countryside. It leads with a primary bouquet of dried herbs, sweet hay[tag], and [tag]earthy spice, followed by a sophisticated secondary layer of woody cedar and a hint of dark marmalade. Unlike the aggressive, fruit-forward hops of the modern era, Janus is defined by its balance and "green" freshness, lacking any harsh resinous edges. On the palate, it imparts a soft, tea-like bitterness that integrates perfectly with the nutty, bready notes of traditional floor-malted barleys, making it the definitive choice for brewers seeking nuanced herbal complexity and a clean, dry finish.

Substitution Tip

If you can't find Janus, the best alternatives are East Kent Golding, First Gold, Fuggle, or Progress.

At A Glance

ProfileDried Herbs, Woody Cedar, Sweet Hay, Marmalade, Earth, Spice
PurposeAroma
Alpha Acid4.5 - 7.0%
SubstitutesEast Kent Golding, First Gold, Fuggle, Progress
Pairs withChallenger (to boost the overall spicy-herbal presence), East Kent Golding (to provide a honey-like floral lift), Northdown (to add a crisp/cedar-like snap)
Beer StylesTraditional English Bitter, Mild Ale, Brown Ale, Old Ale, English Pale Ale

General Information

Country
United Kingdom
Alias
OR17
Storage Stability
Retains 68% alpha acid

Brewing Chemistry (Acids & Oils)

Alpha Acid
4.5 - 7.0%
Beta Acid
2.5 - 4.0%
Cohumulone
28.0 - 33.0%
Total Oil
0.8 - 1.4 ml/100g
Myrcene
30.0 - 45.0%
Humulene
20.0 - 30.0%
Caryophyllene
8.0 - 12.0%
Farnesene
< 1.0%

Growth & Cultivation

Yield
1,300 - 1,600 lbs/acre
Maturity
Mid Season
Tolerant
Verticillium Wilt
Growth Rate
High / Vigorous
Cones
Medium-sized, moderately dense, and notably fragrant. The cones possess a refined herbal aroma that-
Ease of Harvest
Good; Janus was well-suited for the early mechanical harvesting systems being introduced in the UK d
Sex
Female
Leaf Color
Medium green
Side Arm Length
18" - 30" (Medium)

Discovery Tags

Usage

Last Updated
  • 2026-05-11 22:22:22