Dr. Rudi
Alpha acid
10–12%
Beta acid
7–8.5%
Total oil
1.3–1.6 mL
New Zealand
Spalt
Alpha acid
2.5–5.7%
Beta acid
3–5%
Total oil
0.5–0.9 mL
Germany
Key differences
When to pick Dr. Rudi
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- Higher beta acid - smoother, longer-lasting bitterness
- Versatile - works for both bittering and aroma
When to pick Spalt
- Aroma-focused - ideal for dry hopping
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Dr. Rudi
ResinPineLemongrass
Only in Spalt
NobleEarthyHerbalFloral
Property
| Property | Dr. Rudi | Spalt |
|---|---|---|
| Alpha acid | 10–12% | 2.5–5.7% |
| Beta acid | 7–8.5% | 3–5% |
| Co-humulone | 36–39% | 22–29% |
| Total oil | 1.3–1.6 mL | 0.5–0.9 mL |
| Myrcene | 28–30% | 20–35% |
| Humulene | 33–34% | 20–30% |
| Caryophyllene | 9–11% | 8–13% |
| Farnesene | 0–1% | 12–18% |
| Origin | New Zealand | Germany |
| Purpose | Dual purpose | Aroma |
Liberty