Stirling
Alpha acid
6–12%
Beta acid
4–6%
Total oil
1.3–1.9 mL
United States
Spalt
Alpha acid
2.5–5.7%
Beta acid
3–5%
Total oil
0.5–0.9 mL
Germany
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 Spalt
- Aroma-focused - ideal for dry hopping
Aroma profile and use
Shared aromas
HerbalFloral
Only in Stirling
CitusSpicy
Only in Spalt
NobleEarthy
Property
| Property | Stirling | Spalt |
|---|---|---|
| Alpha acid | 6–12% | 2.5–5.7% |
| Beta acid | 4–6% | 3–5% |
| Co-humulone | 21–28% | 22–29% |
| Total oil | 1.3–1.9 mL | 0.5–0.9 mL |
| Myrcene | 44–48% | 20–35% |
| Humulene | 19–23% | 20–30% |
| Caryophyllene | 5–7% | 8–13% |
| Farnesene | 11–17% | 12–18% |
| Origin | United States | Germany |
| Purpose | Dual purpose | Aroma |