Helga
Alpha acid
5.4–7.3%
Beta acid
5–7%
Total oil
0.6–1 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 Helga
- Higher beta acid - smoother, longer-lasting bitterness
- Aroma-focused - ideal for dry hopping
When to pick Stirling
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- More myrcene - pronounced citrus and resinous notes
- Versatile - works for both bittering and aroma
- Richer, more complex aroma profile
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Helga
Noble
Only in Stirling
HerbalCitusSpicyFloral
Property
| Property | Helga | Stirling |
|---|---|---|
| Alpha acid | 5.4–7.3% | 6–12% |
| Beta acid | 5–7% | 4–6% |
| Co-humulone | 20–23% | 21–28% |
| Total oil | 0.6–1 mL | 1.3–1.9 mL |
| Myrcene | 1–13% | 44–48% |
| Humulene | 35–55% | 19–23% |
| Caryophyllene | 10–45% | 5–7% |
| Farnesene | 0–1% | 11–17% |
| Origin | Australia | United States |
| Purpose | Aroma | Dual purpose |