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