Eroica
Alpha acid
7.3–14.9%
Beta acid
3–5.3%
Total oil
0.8–1.3 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 Eroica
- Higher alpha acid - stronger bittering
- More myrcene - pronounced citrus and resinous notes
- Bittering workhorse - efficient in the mash
When to pick Opal
- Versatile - works for both bittering and aroma
- Richer, more complex aroma profile
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Eroica
-
Only in Opal
Black currantCitrusSpicyFloralHerbalAnise
Property
| Property | Eroica | Opal |
|---|---|---|
| Alpha acid | 7.3–14.9% | 5–14% |
| Beta acid | 3–5.3% | 3.5–5.5% |
| Co-humulone | 40% | 13–34% |
| Total oil | 0.8–1.3 mL | 0.8–1.3 mL |
| Myrcene | 55–65% | 20–45% |
| Humulene | 0–1% | 30–50% |
| Caryophyllene | 7–13% | 8–15% |
| Farnesene | 0–1% | 0–1% |
| Origin | United States | Germany |
| Purpose | Bittering | Dual purpose |