Idaho Gem
Relatively high alpha with sweet fruit: pineapple, grapefruit and cherry are the key flavors John I. Haas lists. One of Idaho's two farm-found hops, alongside Idaho 7.
- Smells like
- Pineapple, Grapefruit, Sweet aromatics
- Bitterness
- High (11–14.5% alpha)
- In the glass
- 4 beers here
- Swap it for
- Luminosa · compare them →
Brewing values
Alpha acid
11–14.5% typical 12.6
2 sources, spread of 3.5%
- Charles Faram11–14.5
- John I. Haas11–142020 spec sheet; the oil figures are single analyses, not ranges.
Beta acid
5–7% typical 6
1 source, spread of 2%
- John I. Haas5–72020 spec sheet; the oil figures are single analyses, not ranges.
Cohumulone
35–45% of alpha typical 41.4
2 sources, spread of 10% of alpha
- Charles Faram35–45
- John I. Haas40–452020 spec sheet; the oil figures are single analyses, not ranges.
Total oil
1.3–2 mL/100g typical 1.6
1 source, spread of 0.7 mL/100g
- John I. Haas1.3–22020 spec sheet; the oil figures are single analyses, not ranges.
Alpha to beta runs about 2.1:1, which is what governs how fast the bitterness fades in storage.
Oil composition
- Myrcene76.1%
- Humulene23.1%
- Farnesene0.7%
Normalised to 100% so this hop can be compared like for like. The published components sum to 77% of total oil in the source data.
Aroma
In the glass · 4 beers from 3 breweries
- Forestalgia Aslan Brewing
- Gus Fair Isle Brewing
- Always Make Waves Hazy Pale Ale Stoup Brewing
- If Looks Could Chill Cold IPA - Pink Boots 2022 Stoup Brewing
What to swap it for
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. A "found" hop -- selected on Gooding Farms in Idaho rather than bred from a planned cross.
Notes on this record
purpose defaulted to dual, unconfirmed. Found and marketed by Gooding Farms in Idaho, per the John I. Haas spec sheet.
For brewers and data folks: this hop as JSON · the source file