Opal
Alpha acid
5–14%
Beta acid
3.5–5.5%
Total oil
0.8–1.3 mL
Germany
Crystal
Alpha acid
2.8–6%
Beta acid
4.5–8.5%
Total oil
0.8–2.3 mL
United States
Key differences
When to pick Opal
- Higher alpha acid - stronger bittering
- Versatile - works for both bittering and aroma
When to pick Crystal
- More essential oils - more intense aroma
- Higher beta acid - smoother, longer-lasting bitterness
- More myrcene - pronounced citrus and resinous notes
- Aroma-focused - ideal for dry hopping
- Richer, more complex aroma profile
Aroma profile and use
Shared aromas
Black currantSpicyFloral
Only in Opal
CitrusHerbalAnise
Only in Crystal
WoodyGreenFruityCinnamonNutmeg
Property
| Property | Opal | Crystal |
|---|---|---|
| Alpha acid | 5–14% | 2.8–6% |
| Beta acid | 3.5–5.5% | 4.5–8.5% |
| Co-humulone | 13–34% | 20–26% |
| Total oil | 0.8–1.3 mL | 0.8–2.3 mL |
| Myrcene | 20–45% | 30–55% |
| Humulene | 30–50% | 20–30% |
| Caryophyllene | 8–15% | 5–12% |
| Farnesene | 0–1% | 0–1% |
| Origin | Germany | United States |
| Purpose | Dual purpose | Aroma |
Strisselspalt