Dr. Rudi
Alpha acid
10–12%
Beta acid
7–8.5%
Total oil
1.3–1.6 mL
New Zealand
Stirling
Alpha acid
6–12%
Beta acid
4–6%
Total oil
1.3–1.9 mL
United States
Key differences
When to pick Dr. Rudi
- Higher alpha acid - stronger bittering
- Higher beta acid - smoother, longer-lasting bitterness
When to pick Stirling
- More myrcene - pronounced citrus and resinous notes
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Dr. Rudi
ResinPineLemongrass
Only in Stirling
HerbalCitusSpicyFloral
Property
| Property | Dr. Rudi | Stirling |
|---|---|---|
| Alpha acid | 10–12% | 6–12% |
| Beta acid | 7–8.5% | 4–6% |
| Co-humulone | 36–39% | 21–28% |
| Total oil | 1.3–1.6 mL | 1.3–1.9 mL |
| Myrcene | 28–30% | 44–48% |
| Humulene | 33–34% | 19–23% |
| Caryophyllene | 9–11% | 5–7% |
| Farnesene | 0–1% | 11–17% |
| Origin | New Zealand | United States |
| Purpose | Dual purpose | Dual purpose |