Dr. Rudi
Alpha acid
10–12%
Beta acid
7–8.5%
Total oil
1.3–1.6 mL
New Zealand
Zeus
Alpha acid
13–17.5%
Beta acid
4–6.5%
Total oil
2.4–4.5 mL
United States
Key differences
When to pick Dr. Rudi
- Higher beta acid - smoother, longer-lasting bitterness
- Versatile - works for both bittering and aroma
When to pick Zeus
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- More myrcene - pronounced citrus and resinous notes
- Bittering workhorse - efficient in the mash
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Dr. Rudi
ResinPineLemongrass
Only in Zeus
Black currantLicoriceCurryPungent
Property
| Property | Dr. Rudi | Zeus |
|---|---|---|
| Alpha acid | 10–12% | 13–17.5% |
| Beta acid | 7–8.5% | 4–6.5% |
| Co-humulone | 36–39% | 28–40% |
| Total oil | 1.3–1.6 mL | 2.4–4.5 mL |
| Myrcene | 28–30% | 45–60% |
| Humulene | 33–34% | 9–18% |
| Caryophyllene | 9–11% | 6–11% |
| Farnesene | 0–1% | 0–1% |
| Origin | New Zealand | United States |
| Purpose | Dual purpose | Bittering |