Sterling
Alpha acid
5.5–8.5%
Beta acid
4–6%
Total oil
1–2 mL
United States
X13459
Alpha acid
3–5.5%
Beta acid
4–5%
Total oil
0.8–2 mL
United States
Key differences
When to pick Sterling
- Higher alpha acid - stronger bittering
When to pick X13459
No clear differences - both varieties have a similar profile. Choose based on availability or country of origin.
Aroma profile and use
Shared aromas
Floral
Only in Sterling
NobleHerbalSpicy
Only in X13459
TropicalPeachCitrusStrawberry
Property
| Property | Sterling | X13459 |
|---|---|---|
| Alpha acid | 5.5–8.5% | 3–5.5% |
| Beta acid | 4–6% | 4–5% |
| Co-humulone | 22–28% | 21–24% |
| Total oil | 1–2 mL | 0.8–2 mL |
| Myrcene | 35–45% | - |
| Humulene | 16–18% | - |
| Caryophyllene | 5–8% | - |
| Farnesene | 15–19% | - |
| Origin | United States | United States |
| Purpose | Aroma | Aroma |