AstravsSpalter Select
Astra (dual purpose) and Spalter Select (aroma) serve different purposes. Comparing acids, aromas and character helps pick the right hop.
Astra
Alpha acid
7–10%
Beta acid
4–6%
Total oil
1–3 mL
Australia
Spalter Select
Alpha acid
3–6.5%
Beta acid
2.5–5%
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 Spalter Select
- Aroma-focused - ideal for dry hopping
Aroma profile and use
Shared aromas
Grassy
Only in Astra
TropicalSweetPeachWhiteMelonGrapefruitHoney
Only in Spalter Select
Spicy
Property
| Property | Astra | Spalter Select |
|---|---|---|
| Alpha acid | 7–10% | 3–6.5% |
| Beta acid | 4–6% | 2.5–5% |
| Co-humulone | 26–28% | 21–27% |
| Total oil | 1–3 mL | 0.5–0.9 mL |
| Myrcene | - | 20–40% |
| Humulene | 6–8% | 10–22% |
| Caryophyllene | 2–3% | 4–10% |
| Farnesene | - | 15–22% |
| Origin | Australia | Germany |
| Purpose | Dual purpose | Aroma |