Opus

Brewing values

range on filetypicalbreeder or labmerchant

Alpha to beta runs about 2:1, 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 30% of total oil — 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:

• Humulene27%
• Farnesene3%

Aroma

• Herbal
• Lemon

What to swap it for

• Brewers Gold 55
  aroma 80 · oils — · chemistry 75 · shifts aroma to dual partial data
• Spalter Select 51
  aroma 68 · oils — · chemistry 78 · shifts aroma to dual partial data
• East Kent Golding 49
  aroma 60 · oils — · chemistry 85 · shifts aroma to dual partial data
• Emperor 48
  aroma 51 · oils — · chemistry 92 · shifts aroma to dual partial data
• Perle 47
  aroma 48 · oils — · chemistry 92 · shifts aroma to dual partial data
• Adeena 46
  aroma 53 · oils — · chemistry 84 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 — 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. Crossed 2013, released 2016; sister to Emperor.

Notes on this record

Added 2026-09-29 from charles-faram's page.