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