OpalvsCentennial
Opal and Centennial are popular dual purpose hops. Below you'll find a comparison of alpha and beta acids, aroma profiles and oil composition.
Opal
Alpha acid
5–14%
Beta acid
3.5–5.5%
Total oil
0.8–1.3 mL
Germany
Centennial
Alpha acid
7–12%
Beta acid
3.5–5.5%
Total oil
1–3 mL
United States
Key differences
When to pick Opal
No clear differences - both varieties have a similar profile. Choose based on availability or country of origin.
When to pick Centennial
- More essential oils - more intense aroma
- More myrcene - pronounced citrus and resinous notes
Aroma profile and use
Shared aromas
CitrusFloral
Only in Opal
Black currantSpicyHerbalAnise
Only in Centennial
PineGrapefruitTangerine
Property
| Property | Opal | Centennial |
|---|---|---|
| Alpha acid | 5–14% | 7–12% |
| Beta acid | 3.5–5.5% | 3.5–5.5% |
| Co-humulone | 13–34% | 23–30% |
| Total oil | 0.8–1.3 mL | 1–3 mL |
| Myrcene | 20–45% | 55–65% |
| Humulene | 30–50% | 10–20% |
| Caryophyllene | 8–15% | 5–7% |
| Farnesene | 0–1% | 0–1% |
| Origin | Germany | United States |
| Purpose | Dual purpose | Dual purpose |
Styrian Golding