Dr. Rudi
Alpha acid
10–12%
Beta acid
7–8.5%
Total oil
1.3–1.6 mL
New Zealand
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 Dr. Rudi
- Higher alpha acid - stronger bittering
- Higher beta acid - smoother, longer-lasting bitterness
- Versatile - works for both bittering and aroma
When to pick Crystal
- More myrcene - pronounced citrus and resinous notes
- Aroma-focused - ideal for dry hopping
- Richer, more complex aroma profile
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Dr. Rudi
ResinPineLemongrass
Only in Crystal
WoodyFloralGreenFruitySpicyCinnamonNutmegBlack currant
Property
| Property | Dr. Rudi | Crystal |
|---|---|---|
| Alpha acid | 10–12% | 2.8–6% |
| Beta acid | 7–8.5% | 4.5–8.5% |
| Co-humulone | 36–39% | 20–26% |
| Total oil | 1.3–1.6 mL | 0.8–2.3 mL |
| Myrcene | 28–30% | 30–55% |
| Humulene | 33–34% | 20–30% |
| Caryophyllene | 9–11% | 5–12% |
| Farnesene | 0–1% | 0–1% |
| Origin | New Zealand | United States |
| Purpose | Dual purpose | Aroma |
Hersbrucker