Brooks Groves

Styrian Cardinal

A Slovenian aroma hop from the Institute of Hop Research and Brewing in Ε½alec, bred from European and American germplasm: citrus and fruit -- pineapple, orange, lime, guava -- best late or in the dry hop, per Charles Faram and Hop Alliance.

Aroma
Origin Slovenia
Bred by Slovenian Institute of Hop Research and Brewing
Two or more independent sources
Smells like
Pineapple, Orange, Lime, Guava, Citrus
Bitterness
Moderate (7.8–10% alpha)
Swap it for
Luminosa Β· compare them β†’

Brewing values

range on filetypicalbreeder or labmerchant

Alpha acid

7.8–10% typical 8.4

2 sources, and they disagree, spread of 2.2%
  • Charles Faram8–10
  • Hop Alliance7.8–7.8

Beta acid

3.2–4.6% typical 3.9

2 sources, spread of 1.4%
  • Charles Faram3.2–4.6
  • Hop Alliance3.2–4.6

Cohumulone

31–37% of alpha typical 34

2 sources, spread of 6% of alpha
  • Charles Faram31–37
  • Hop Alliance31–37

Total oil

2.5 mL/100g

1 source
  • Hop Alliance2.5–2.5

Alpha to beta runs about 2.2:1, which is what governs how fast the bitterness fades in storage.

Oil composition

  • Myrcene57%
  • Humulene23.4%
  • Caryophyllene12%
  • Farnesene7.6%

Normalised to 100% so this hop can be compared like for like. The published components sum to 79% of total oil in the source data.

Aroma Β· tap one for every hop and beer with that smell

What to swap it for

  • Luminosa 66
    aroma 53 Β· oils 65 Β· chemistry 83
  • Krush 64
    aroma 51 Β· oils 81 Β· chemistry 64 Β· shifts aroma to dual
  • Pacific Sunrise 64
    aroma 55 Β· oils 70 Β· chemistry 69
  • Kazbek 63
    aroma 51 Β· oils 66 Β· chemistry 76 Β· shifts aroma to dual
  • Citra 63
    aroma 47 Β· oils 72 Β· chemistry 74 Β· shifts aroma to dual
  • HBC 638 61
    aroma 36 Β· oils 79 Β· chemistry 77 Β· shifts aroma to dual

Scored on aroma overlap, oil composition and acid chemistry, then nudged up where a brewer has vouched for the swap by hand. An axis we haven't measured earns nothing, so a hop known only by its acid numbers caps out around 30 β€” the score is how much evidence there is for the swap, not just how close the numbers happen to be. Anything under 50 is a different beer, not a substitution.

Pedigree

Parentage unrecorded. Bred from European and American germplasm.

Notes on this record

Figures and description added 2026-09-29. Aroma per both Charles Faram and Hop Alliance.

For brewers and data folks: this hop as JSON Β· the source file

HopLove is an open dataset first and a website second. Every figure on this site is rolled up from cited observations in data/hops/, and the same build that made this page wrote ../../api/v1/hops.json β€” free, no key, no rate limit.

Built 2026-11-12T21:40:27.769Z from 232 cultivar records. Data under CC BY 4.0, code under MIT. Source and corrections on GitHub. Not affiliated with any hop breeder, farm or merchant; variety names are the marks of their owners.