Cluster
Alpha acid
5.5–9%
Beta acid
4.5–6%
Total oil
0.4–1 mL
United States
Sládek
Alpha acid
4.5–9%
Beta acid
4–11%
Total oil
0.8–2 mL
Czech Republic
Key differences
When to pick Cluster
- Versatile - works for both bittering and aroma
When to pick Sládek
- More essential oils - more intense aroma
- Higher beta acid - smoother, longer-lasting bitterness
- Aroma-focused - ideal for dry hopping
- Richer, more complex aroma profile
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Cluster
FloralEarthySweet
Only in Sládek
NobleFruityPeachPassion fruitGrapefruit
Property
| Property | Cluster | Sládek |
|---|---|---|
| Alpha acid | 5.5–9% | 4.5–9% |
| Beta acid | 4.5–6% | 4–11% |
| Co-humulone | 33–43% | 23–40% |
| Total oil | 0.4–1 mL | 0.8–2 mL |
| Myrcene | 38–46% | 35–50% |
| Humulene | 15–20% | 20–40% |
| Caryophyllene | 8–10% | 9–14% |
| Farnesene | 0–1% | 0–1% |
| Origin | United States | Czech Republic |
| Purpose | Dual purpose | Aroma |