Opal
Alpha acid
5–14%
Beta acid
3.5–5.5%
Total oil
0.8–1.3 mL
Germany
Northdown
Alpha acid
7–10%
Beta acid
4–5.5%
Total oil
1.2–2.5 mL
United States
Key differences
When to pick Opal
- Higher alpha acid - stronger bittering
- More myrcene - pronounced citrus and resinous notes
When to pick Northdown
- More essential oils - more intense aroma
Aroma profile and use
Shared aromas
SpicyFloral
Only in Opal
Black currantCitrusHerbalAnise
Only in Northdown
PineCedarBerry
Property
| Property | Opal | Northdown |
|---|---|---|
| Alpha acid | 5–14% | 7–10% |
| Beta acid | 3.5–5.5% | 4–5.5% |
| Co-humulone | 13–34% | 24–32% |
| Total oil | 0.8–1.3 mL | 1.2–2.5 mL |
| Myrcene | 20–45% | 23–29% |
| Humulene | 30–50% | 40–45% |
| Caryophyllene | 8–15% | 13–17% |
| Farnesene | 0–1% | 0–1% |
| Origin | Germany | United States |
| Purpose | Dual purpose | Dual purpose |
Admiral
Styrian Golding