Admiral
Alpha acid
13–16.2%
Beta acid
4.8–6.1%
Total oil
1–1.7 mL
United Kingdom
Opal
Alpha acid
5–14%
Beta acid
3.5–5.5%
Total oil
0.8–1.3 mL
Germany
Key differences
When to pick Admiral
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- More myrcene - pronounced citrus and resinous notes
- Bittering workhorse - efficient in the mash
When to pick Opal
- Versatile - works for both bittering and aroma
Aroma profile and use
Shared aromas
CitrusHerbal
Only in Admiral
OrangeTeaFreshPineResin
Only in Opal
Black currantSpicyFloralAnise
Property
| Property | Admiral | Opal |
|---|---|---|
| Alpha acid | 13–16.2% | 5–14% |
| Beta acid | 4.8–6.1% | 3.5–5.5% |
| Co-humulone | 37–45% | 13–34% |
| Total oil | 1–1.7 mL | 0.8–1.3 mL |
| Myrcene | 39–48% | 20–45% |
| Humulene | 23–26% | 30–50% |
| Caryophyllene | 6–8% | 8–15% |
| Farnesene | 0–2% | 0–1% |
| Origin | United Kingdom | Germany |
| Purpose | Bittering | Dual purpose |
Northdown
Styrian Golding