Astra
Alpha acid
7–10%
Beta acid
4–6%
Total oil
1–3 mL
Australia
Riwaka
Alpha acid
4.5–6.5%
Beta acid
4–5%
Total oil
0.8–1.5 mL
New Zealand
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 Riwaka
- Aroma-focused - ideal for dry hopping
Aroma profile and use
Shared aromas
TropicalGrapefruit
Only in Astra
SweetPeachWhiteMelonGrassyHoney
Only in Riwaka
Passion fruitCitrus
Property
| Property | Astra | Riwaka |
|---|---|---|
| Alpha acid | 7–10% | 4.5–6.5% |
| Beta acid | 4–6% | 4–5% |
| Co-humulone | 26–28% | 29–38% |
| Total oil | 1–3 mL | 0.8–1.5 mL |
| Myrcene | - | 67–70% |
| Humulene | 6–8% | 8–10% |
| Caryophyllene | 2–3% | 2–6% |
| Farnesene | - | 0–1% |
| Origin | Australia | New Zealand |
| Purpose | Dual purpose | Aroma |
Calypso