TerraFlux
BarthHaas describes it as resin, pepper, plum, earthy, leek.
- Smells like
- Resinous, Black pepper, Stone fruit, Earthy, Onion / garlic
- Bitterness
- Very high (13.2–23% alpha)
- Swap it for
- Pacific Gem · compare them →
Brewing values
Alpha acid
13.2–23% typical 17.6
3 sources, spread of 9.8%
- Yakima Chief Ranches17–20
- BarthHaas13.2–18.5Range over the last 4 crop years.
- Hop Breeding Company14–23
Beta acid
4–8.9% typical 5.9
3 sources, spread of 4.9%
- Yakima Chief Ranches4.5–6
- BarthHaas5.2–7Range over the last 4 crop years.
- Hop Breeding Company4–8.9
Total oil
1–5 mL/100g typical 2.3
3 sources, spread of 4 mL/100g
- Yakima Chief Ranches1–2.5
- BarthHaas1.7–2.8Range over the last 4 crop years.
- Hop Breeding Company1–5
Alpha to beta runs about 3:1, which is what governs how fast the bitterness fades in storage.
Oil composition
- Myrcene71.7%
- Humulene16.6%
- Caryophyllene10.4%
- Linalool0.7%
- Farnesene0.3%
- Geraniol0.3%
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.
Where it's grown
In 2025: 2,059 acres in Washington. That's 2,059 acres. No. 6 by acreage in Washington.
2016–2025: NASS reports it as “HBC 682” / “Pahto”.
Acres by year
| Year | Washington |
|---|---|
| 2015 | — |
| 2016 | withheld |
| 2017 | withheld |
| 2018 | 1,721 |
| 2019 | 2,109 |
| 2020 | 2,208 |
| 2021 | 2,114 |
| 2022 | 1,709 |
| 2023 | 2,226 |
| 2024 | 2,429 |
| 2025 | 2,059 |
Acres harvested, from the USDA NASS National Hop Report. Where America's hops grow →
Aroma
What to swap it for
-
Pacific Gem 59
-
Simcoe 59
-
Summit 57
-
El Dorado 56
-
Idaho 7 56
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 bittering per HBC ("the first high-alpha bittering hop released by HBC"). Breeder set from HBC selection number in YCR's own brand URL. Renamed from HBC 682: HBC's site lists HBC 682 as TerraFlux, and BarthHaas's TerraFlux page carries the code PAH (Pahto) -- one hop, rebranded. A separate empty Pahto stub was merged in.
For brewers and data folks: this hop as JSON · the source file · where America's hops grow