Astra
Alpha acid
7–10%
Beta acid
4–6%
Total oil
1–3 mL
Australia
Delta
Alpha acid
5.5–7%
Beta acid
5.5–7%
Total oil
0.5–1.1 mL
United States
Key differences
When to pick Astra
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- Versatile - works for both bittering and aroma
- Richer, more complex aroma profile
When to pick Delta
- Higher beta acid - smoother, longer-lasting bitterness
- Aroma-focused - ideal for dry hopping
Aroma profile and use
Shared aromas
Melon
Only in Astra
TropicalSweetPeachWhiteGrassyGrapefruitHoney
Only in Delta
CitrusSpicy
Property
| Property | Astra | Delta |
|---|---|---|
| Alpha acid | 7–10% | 5.5–7% |
| Beta acid | 4–6% | 5.5–7% |
| Co-humulone | 26–28% | 22–24% |
| Total oil | 1–3 mL | 0.5–1.1 mL |
| Myrcene | - | 25–40% |
| Humulene | 6–8% | 25–35% |
| Caryophyllene | 2–3% | 9–15% |
| Farnesene | - | 0–1% |
| Origin | Australia | United States |
| Purpose | Dual purpose | Aroma |
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