Sterling
Alpha acid
5.5–8.5%
Beta acid
4–6%
Total oil
1–2 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 Sterling
- 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
When to pick Spalt
No clear differences - both varieties have a similar profile. Choose based on availability or country of origin.
Aroma profile and use
Shared aromas
NobleHerbalFloral
Only in Sterling
Spicy
Only in Spalt
Earthy
Property
| Property | Sterling | Spalt |
|---|---|---|
| Alpha acid | 5.5–8.5% | 2.5–5.7% |
| Beta acid | 4–6% | 3–5% |
| Co-humulone | 22–28% | 22–29% |
| Total oil | 1–2 mL | 0.5–0.9 mL |
| Myrcene | 35–45% | 20–35% |
| Humulene | 16–18% | 20–30% |
| Caryophyllene | 5–8% | 8–13% |
| Farnesene | 15–19% | 12–18% |
| Origin | United States | Germany |
| Purpose | Aroma | Aroma |