Astra
Alpha acid
7–10%
Beta acid
4–6%
Total oil
1–3 mL
Australia
Spalt
Alpha acid
2.5–5.7%
Beta acid
3–5%
Total oil
0.5–0.9 mL
Germany
Key differences
When to pick Astra
- 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
- Richer, more complex aroma profile
When to pick Spalt
- Aroma-focused - ideal for dry hopping
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Astra
TropicalSweetPeachWhiteMelonGrassyGrapefruitHoney
Only in Spalt
NobleEarthyHerbalFloral
Property
| Property | Astra | Spalt |
|---|---|---|
| Alpha acid | 7–10% | 2.5–5.7% |
| Beta acid | 4–6% | 3–5% |
| Co-humulone | 26–28% | 22–29% |
| Total oil | 1–3 mL | 0.5–0.9 mL |
| Myrcene | - | 20–35% |
| Humulene | 6–8% | 20–30% |
| Caryophyllene | 2–3% | 8–13% |
| Farnesene | - | 12–18% |
| Origin | Australia | Germany |
| Purpose | Dual purpose | Aroma |
Liberty