Dr. RudivsChallenger
Dr. Rudi and Challenger are popular dual purpose hops. Below you'll find a comparison of alpha and beta acids, aroma profiles and oil composition.
Dr. Rudi
Alpha acid
10–12%
Beta acid
7–8.5%
Total oil
1.3–1.6 mL
New Zealand
Challenger
Alpha acid
6.5–9%
Beta acid
3–4.5%
Total oil
1–1.7 mL
United Kingdom
Key differences
When to pick Dr. Rudi
- Higher alpha acid - stronger bittering
- Higher beta acid - smoother, longer-lasting bitterness
When to pick Challenger
- 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 Challenger
CedarGreenFruity
Property
| Property | Dr. Rudi | Challenger |
|---|---|---|
| Alpha acid | 10–12% | 6.5–9% |
| Beta acid | 7–8.5% | 3–4.5% |
| Co-humulone | 36–39% | 20–25% |
| Total oil | 1.3–1.6 mL | 1–1.7 mL |
| Myrcene | 28–30% | 30–42% |
| Humulene | 33–34% | 24–26% |
| Caryophyllene | 9–11% | 9–10% |
| Farnesene | 0–1% | 0–1% |
| Origin | New Zealand | United Kingdom |
| Purpose | Dual purpose | Dual purpose |
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