Cluster
Alpha acid
5.5–9%
Beta acid
4.5–6%
Total oil
0.4–1 mL
United States
Spalt
Alpha acid
2.5–5.7%
Beta acid
3–5%
Total oil
0.5–0.9 mL
Germany
Key differences
When to pick Cluster
- 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 Spalt
- Aroma-focused - ideal for dry hopping
Aroma profile and use
Shared aromas
FloralEarthy
Only in Cluster
Sweet
Only in Spalt
NobleHerbal
Property
| Property | Cluster | Spalt |
|---|---|---|
| Alpha acid | 5.5–9% | 2.5–5.7% |
| Beta acid | 4.5–6% | 3–5% |
| Co-humulone | 33–43% | 22–29% |
| Total oil | 0.4–1 mL | 0.5–0.9 mL |
| Myrcene | 38–46% | 20–35% |
| Humulene | 15–20% | 20–30% |
| Caryophyllene | 8–10% | 8–13% |
| Farnesene | 0–1% | 12–18% |
| Origin | United States | Germany |
| Purpose | Dual purpose | Aroma |