Stirling
Alpha acid
6–12%
Beta acid
4–6%
Total oil
1.3–1.9 mL
United States
Liberty
Alpha acid
3–6.5%
Beta acid
3–4%
Total oil
0.6–1.8 mL
United States
Key differences
When to pick Stirling
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- Higher beta acid - smoother, longer-lasting bitterness
- More myrcene - pronounced citrus and resinous notes
- Versatile - works for both bittering and aroma
When to pick Liberty
- Bittering workhorse - efficient in the mash
- Richer, more complex aroma profile
Aroma profile and use
Shared aromas
HerbalSpicyFloral
Only in Stirling
Citus
Only in Liberty
NobleDelicateCitrusLemon
Property
| Property | Stirling | Liberty |
|---|---|---|
| Alpha acid | 6–12% | 3–6.5% |
| Beta acid | 4–6% | 3–4% |
| Co-humulone | 21–28% | 22–30% |
| Total oil | 1.3–1.9 mL | 0.6–1.8 mL |
| Myrcene | 44–48% | 15–25% |
| Humulene | 19–23% | 35–45% |
| Caryophyllene | 5–7% | 10–15% |
| Farnesene | 11–17% | 0–1% |
| Origin | United States | United States |
| Purpose | Dual purpose | Bittering |