Ahtanum
Alpha acid
3.5–6.5%
Beta acid
4–6.5%
Total oil
0.5–1.7 mL
United States
Opal
Alpha acid
5–14%
Beta acid
3.5–5.5%
Total oil
0.8–1.3 mL
Germany
Key differences
When to pick Ahtanum
- More myrcene - pronounced citrus and resinous notes
- Aroma-focused - ideal for dry hopping
- Richer, more complex aroma profile
When to pick Opal
- Higher alpha acid - stronger bittering
- Versatile - works for both bittering and aroma
Aroma profile and use
Shared aromas
CitrusFloral
Only in Ahtanum
GrapefruitGeraniumPineEarthyCedarLemon
Only in Opal
Black currantSpicyHerbalAnise
Property
| Property | Ahtanum | Opal |
|---|---|---|
| Alpha acid | 3.5–6.5% | 5–14% |
| Beta acid | 4–6.5% | 3.5–5.5% |
| Co-humulone | 30–35% | 13–34% |
| Total oil | 0.5–1.7 mL | 0.8–1.3 mL |
| Myrcene | 45–55% | 20–45% |
| Humulene | 15–22% | 30–50% |
| Caryophyllene | 9–12% | 8–15% |
| Farnesene | 0–1% | 0–1% |
| Origin | United States | Germany |
| Purpose | Aroma | Dual purpose |
Styrian Golding