HBC 638
Centennial's bright citrus and flowers with a tropical punch on top: mango, pineapple, cherry, peach, strawberry, per John I. Haas. An experimental from the Hop Breeding Company.
- Smells like
- Mango, Pineapple, Stone fruit, Citrus, Floral
- Bitterness
- Very high (12–16% alpha)
- In the glass
- 4 beers here
- Swap it for
- Pacific Sunrise · compare them →
Brewing values
Alpha acid
12–16% typical 14
2 sources, spread of 4%
- John I. Haas12–16
- Yakima Valley Hops12–16
Beta acid
3–6% typical 4.5
2 sources, spread of 3%
- John I. Haas3–6
- Yakima Valley Hops3–6
Cohumulone
28–31% of alpha typical 29.5
2 sources, spread of 3% of alpha
- John I. Haas28.5–30.5
- Yakima Valley Hops28–31
Total oil
1.5–3 mL/100g typical 2.3
2 sources, spread of 1.5 mL/100g
- John I. Haas1.7–3
- Yakima Valley Hops1.5–3
Alpha to beta runs about 3.1:1, which is what governs how fast the bitterness fades in storage.
Oil composition
- Myrcene54%
- Humulene26.3%
- Caryophyllene19.2%
- Linalool0.5%
Normalised to 100% so this hop can be compared like for like. The published components sum to 66.6% of total oil in the source data.
Aroma
In the glass · 4 beers from 4 breweries
- Beer Hunter IPA Breakside Brewery
- Arc of Infinity Georgetown Brewing
- Hyper IPA pFriem Family Brewers
- Equal Rights? Helles Yeah! 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.
Notes on this record
purpose defaulted to dual, unconfirmed -- neither source states a role. Two merchants agree on the figures, but both sell it, so it stays single-source until a breeder sheet turns up.
For brewers and data folks: this hop as JSON · the source file