Emerald SpirevsAstra
Emerald Spire and Astra are popular dual purpose hops. Below you'll find a comparison of alpha and beta acids, aroma profiles and oil composition.
Emerald Spire
Alpha acid
8.6–13%
Beta acid
3.5–4.5%
Total oil
-
United States
Astra
Alpha acid
7–10%
Beta acid
4–6%
Total oil
1–3 mL
Australia
Key differences
When to pick Emerald Spire
- Higher alpha acid - stronger bittering
When to pick Astra
- Higher beta acid - smoother, longer-lasting bitterness
Aroma profile and use
Shared aromas
PeachWhiteMelon
Only in Emerald Spire
FruityGrapesWatermelonBubbleHoneydew
Only in Astra
TropicalSweetGrassyGrapefruitHoney
Property
| Property | Emerald Spire | Astra |
|---|---|---|
| Alpha acid | 8.6–13% | 7–10% |
| Beta acid | 3.5–4.5% | 4–6% |
| Co-humulone | 38–39% | 26–28% |
| Total oil | - | 1–3 mL |
| Myrcene | 36–37% | - |
| Humulene | 10–11% | 6–8% |
| Caryophyllene | 7–8% | 2–3% |
| Farnesene | 0–1% | - |
| Origin | United States | Australia |
| Purpose | Dual purpose | Dual purpose |