Brooks Groves

Magnat

BarthHaas describes it as lemon, pine, camomile blossom, lovage, ginger.

Dual purpose
Origin Poland
Code MGN
Bred by Unrecorded
One source
Smells like
Lemon, Pine, Floral, Herbal, Spice
Bitterness
High (11.5–13.7% alpha)
Swap it for
Adeena Β· compare them β†’

Brewing values

range on filetypicalbreeder or labmerchant

Alpha acid

11.5–13.7% typical 12.6

1 source, spread of 2.2%
  • BarthHaas11.5–13.7Range over the last 4 crop years.

Beta acid

3–7% typical 5

1 source, spread of 4%
  • BarthHaas3–7Range over the last 4 crop years.

Total oil

1.4–2 mL/100g typical 1.7

1 source, spread of 0.6 mL/100g
  • BarthHaas1.4–2Range over the last 4 crop years.

Alpha to beta runs about 2.5:1, which is what governs how fast the bitterness fades in storage.

Oil composition

Not enough of this hop's oil is accounted for to show a breakdown. The sources on file name components totalling 38.5% of total oil β€” most of the balance is myrcene, which the source for this record doesn't publish. Rather than scale what's here up to 100% and invent the rest, here is only what was actually measured:

  • Myrcene38.5%

Aroma

  • Lemon
  • Pine
  • Floral
  • Herbal
  • Spice

What to swap it for

  • Adeena 54
    aroma 87 Β· oils β€” Β· chemistry 65 Β· shifts dual to aroma partial data
  • aroma 72 Β· oils β€” Β· chemistry 79 Β· shifts dual to aroma partial data
  • aroma 70 Β· oils β€” Β· chemistry 81 Β· shifts dual to aroma partial data
  • aroma 56 Β· oils β€” Β· chemistry 85 partial data
  • aroma 53 Β· oils β€” Β· chemistry 89 partial data
  • HBC 522 47
    aroma 48 Β· oils β€” Β· chemistry 92 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.