Astra
Alpha acid
7–10%
Beta acid
4–6%
Total oil
1–3 mL
Australia
Glacier
Alpha acid
3.3–9.7%
Beta acid
5.4–10%
Total oil
0.5–1.5 mL
United States
Key differences
When to pick Astra
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- Richer, more complex aroma profile
When to pick Glacier
- Higher beta acid - smoother, longer-lasting bitterness
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Astra
TropicalSweetPeachWhiteMelonGrassyGrapefruitHoney
Only in Glacier
PlumBlackberryWoodyCedar
Property
| Property | Astra | Glacier |
|---|---|---|
| Alpha acid | 7–10% | 3.3–9.7% |
| Beta acid | 4–6% | 5.4–10% |
| Co-humulone | 26–28% | 11–16% |
| Total oil | 1–3 mL | 0.5–1.5 mL |
| Myrcene | - | 35–45% |
| Humulene | 6–8% | 25–35% |
| Caryophyllene | 2–3% | 8–13% |
| Farnesene | - | 0–1% |
| Origin | Australia | United States |
| Purpose | Dual purpose | Dual purpose |
Fuggle
Styrian Golding