Ahtanum
Not yet written. Fill in from a real source, then update meta.status.
- Bitterness
- Moderate (5.7–6.3% alpha)
- In the glass
- 9 beers here
- Swap it for
- Taiheke · compare them →
Brewing values
Alpha acid
5.7–6.3% typical 6
1 source, spread of 0.6%
- Yakima Chief Ranches5.7–6.3
Beta acid
5–6.5% typical 5.8
1 source, spread of 1.5%
- Yakima Chief Ranches5–6.5
Cohumulone
30–35% of alpha typical 32.5
1 source, spread of 5% of alpha
- Yakima Chief Ranches30–35
Total oil
0.8–1.2 mL/100g typical 1
1 source, spread of 0.4 mL/100g
- Yakima Chief Ranches0.8–1.2
Alpha to beta runs about 1:1, which is what governs how fast the bitterness fades in storage.
Oil composition
- Myrcene64.8%
- Humulene22.2%
- Caryophyllene13%
- Farnesene0%
Normalised to 100% so this hop can be compared like for like. The published components sum to 81% of total oil in the source data.
Where it's grown
Not in the 2025 survey. Last reported in 2024.
Acres by year
| Year | Washington |
|---|---|
| 2015 | 145 |
| 2016 | 155 |
| 2017 | 371 |
| 2018 | 255 |
| 2019 | 261 |
| 2020 | 230 |
| 2021 | 166 |
| 2022 | 168 |
| 2023 | withheld |
| 2024 | withheld |
| 2025 | — |
Acres harvested, from the USDA NASS National Hop Report. Where America's hops grow →
In the glass · 9 beers from 3 breweries
- Forklift Double IPA Barley Brown's Beer
- Ales for ALS Georgetown Brewing
- Chaotic Good Georgetown Brewing
- (You Should) Smile More IPA Stoup Brewing
- Aloha King IPA Stoup Brewing
- Equal Rights? Helles Yeah! Stoup Brewing
- Fabulous! IPA Stoup Brewing
- Ultrasonic Rainbow IPA Stoup Brewing
- Viafuct IPA Stoup Brewing
Brewed alongside · in 9 beers that use Ahtanum with other hops
Counted from the hop lists of every beer in What's in the can: what Pacific Northwest brewers actually put next to Ahtanum.
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.
Notes on this record
purpose defaulted to dual, unconfirmed. Breeder and ownership left unrecorded until a source is read.
For brewers and data folks: this hop as JSON · the source file · where America's hops grow