Dr. Rudi
Alpha acid
10–12%
Beta acid
7–8.5%
Total oil
1.3–1.6 mL
New Zealand
Liberty
Alpha acid
3–6.5%
Beta acid
3–4%
Total oil
0.6–1.8 mL
United States
Key differences
When to pick Dr. Rudi
- Higher alpha acid - stronger bittering
- Higher beta acid - smoother, longer-lasting bitterness
- More myrcene - pronounced citrus and resinous notes
- Versatile - works for both bittering and aroma
When to pick Liberty
- Bittering workhorse - efficient in the mash
- Richer, more complex aroma profile
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Dr. Rudi
ResinPineLemongrass
Only in Liberty
NobleFloralHerbalSpicyDelicateCitrusLemon
Property
| Property | Dr. Rudi | Liberty |
|---|---|---|
| Alpha acid | 10–12% | 3–6.5% |
| Beta acid | 7–8.5% | 3–4% |
| Co-humulone | 36–39% | 22–30% |
| Total oil | 1.3–1.6 mL | 0.6–1.8 mL |
| Myrcene | 28–30% | 15–25% |
| Humulene | 33–34% | 35–45% |
| Caryophyllene | 9–11% | 10–15% |
| Farnesene | 0–1% | 0–1% |
| Origin | New Zealand | United States |
| Purpose | Dual purpose | Bittering |