Brooks Groves

Green Bullet

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Dual purpose
Origin New Zealand
Bred by Unrecorded
Two or more independent sources
Bitterness
High (11–14% alpha)
Swap it for
Pacific Gem Β· compare them β†’

Brewing values

range on filetypicalbreeder or labmerchant

Alpha acid

11–14% typical 12.8

2 sources, spread of 3%
  • Hopsteiner11–14Data sheet last changed 2020-01-09.
  • New Zealand Hops Ltd12–14

Beta acid

5–7.5% typical 6.5

2 sources, spread of 2.5%
  • Hopsteiner6.5–7.5Data sheet last changed 2020-01-09.
  • New Zealand Hops Ltd5–7

Cohumulone

41–43% of alpha typical 42

1 source, spread of 2% of alpha
  • Hopsteiner41–43Data sheet last changed 2020-01-09.

Total oil

0.9–2 mL/100g typical 1.4

2 sources, and they disagree, spread of 1.1 mL/100g
  • Hopsteiner0.9–1.3Data sheet last changed 2020-01-09.
  • New Zealand Hops Ltd1.3–2

Alpha to beta runs about 2:1, which is what governs how fast the bitterness fades in storage.

Oil composition

  • Myrcene68.5%
  • Humulene21.8%
  • Caryophyllene6.8%
  • Linalool1.3%
  • Geraniol0.9%
  • Farnesene0.7%

Normalised to 100% so this hop can be compared like for like. The published components sum to 80.3% of total oil in the source data.

What to swap it for

  • aroma β€” Β· oils 96 Β· chemistry 82 Β· shifts dual to bittering partial data
  • aroma β€” Β· oils 82 Β· chemistry 94 partial data
  • Galena 50
    aroma β€” Β· oils 81 Β· chemistry 84 partial data
  • Belma 49
    aroma β€” Β· oils 80 Β· chemistry 83 Β· shifts dual to aroma partial data
  • aroma β€” Β· oils 71 Β· chemistry 92 partial data
  • Idaho 7 49
    aroma β€” Β· oils 92 Β· chemistry 70 partial data

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.

Notes on this record

purpose defaulted to dual, unconfirmed -- was not researched individually for this bulk scaffold pass. Correct before publishing.

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 2026-09-30T05:41:31.791Z 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.