Crystal
Alpha acid
2.8–6%
Beta acid
4.5–8.5%
Total oil
0.8–2.3 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 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
When to pick Opal
- Higher alpha acid - stronger bittering
- Versatile - works for both bittering and aroma
Aroma profile and use
Shared aromas
FloralSpicyBlack currant
Only in Crystal
WoodyGreenFruityCinnamonNutmeg
Only in Opal
CitrusHerbalAnise
Property
| Property | Crystal | Opal |
|---|---|---|
| Alpha acid | 2.8–6% | 5–14% |
| Beta acid | 4.5–8.5% | 3.5–5.5% |
| Co-humulone | 20–26% | 13–34% |
| Total oil | 0.8–2.3 mL | 0.8–1.3 mL |
| Myrcene | 30–55% | 20–45% |
| Humulene | 20–30% | 30–50% |
| Caryophyllene | 5–12% | 8–15% |
| Farnesene | 0–1% | 0–1% |
| Origin | United States | Germany |
| Purpose | Aroma | Dual purpose |
Strisselspalt