Astra
Alpha acid
7–10%
Beta acid
4–6%
Total oil
1–3 mL
Australia
Stirling
Alpha acid
6–12%
Beta acid
4–6%
Total oil
1.3–1.9 mL
United States
Key differences
When to pick Astra
- More essential oils - more intense aroma
- Richer, more complex aroma profile
When to pick Stirling
No clear differences - both varieties have a similar profile. Choose based on availability or country of origin.
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Astra
TropicalSweetPeachWhiteMelonGrassyGrapefruitHoney
Only in Stirling
HerbalCitusSpicyFloral
Property
| Property | Astra | Stirling |
|---|---|---|
| Alpha acid | 7–10% | 6–12% |
| Beta acid | 4–6% | 4–6% |
| Co-humulone | 26–28% | 21–28% |
| Total oil | 1–3 mL | 1.3–1.9 mL |
| Myrcene | - | 44–48% |
| Humulene | 6–8% | 19–23% |
| Caryophyllene | 2–3% | 5–7% |
| Farnesene | - | 11–17% |
| Origin | Australia | United States |
| Purpose | Dual purpose | Dual purpose |