Glacier
Alpha acid
3.3–9.7%
Beta acid
5.4–10%
Total oil
0.5–1.5 mL
United States
Herkules
Alpha acid
12–17%
Beta acid
4–5.5%
Total oil
1.4–2.4 mL
Germany
Key differences
When to pick Glacier
- Higher beta acid - smoother, longer-lasting bitterness
- Versatile - works for both bittering and aroma
- Richer, more complex aroma profile
When to pick Herkules
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- Bittering workhorse - efficient in the mash
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Glacier
PlumBlackberryWoodyCedar
Only in Herkules
CitrusMelon
Property
| Property | Glacier | Herkules |
|---|---|---|
| Alpha acid | 3.3–9.7% | 12–17% |
| Beta acid | 5.4–10% | 4–5.5% |
| Co-humulone | 11–16% | 32–38% |
| Total oil | 0.5–1.5 mL | 1.4–2.4 mL |
| Myrcene | 35–45% | 30–50% |
| Humulene | 25–35% | 30–45% |
| Caryophyllene | 8–13% | 7–12% |
| Farnesene | 0–1% | 0–1% |
| Origin | United States | Germany |
| Purpose | Dual purpose | Bittering |
Fuggle
Styrian Golding