Delta
Alpha acid
5.5–7%
Beta acid
5.5–7%
Total oil
0.5–1.1 mL
United States
Stirling
Alpha acid
6–12%
Beta acid
4–6%
Total oil
1.3–1.9 mL
United States
Key differences
When to pick Delta
- 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
Aroma profile and use
Shared aromas
Spicy
Only in Delta
CitrusMelon
Only in Stirling
HerbalCitusFloral
Property
| Property | Delta | Stirling |
|---|---|---|
| Alpha acid | 5.5–7% | 6–12% |
| Beta acid | 5.5–7% | 4–6% |
| Co-humulone | 22–24% | 21–28% |
| Total oil | 0.5–1.1 mL | 1.3–1.9 mL |
| Myrcene | 25–40% | 44–48% |
| Humulene | 25–35% | 19–23% |
| Caryophyllene | 9–15% | 5–7% |
| Farnesene | 0–1% | 11–17% |
| Origin | United States | United States |
| Purpose | Aroma | Dual purpose |
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