Sterling
Alpha acid
5.5–8.5%
Beta acid
4–6%
Total oil
1–2 mL
United States
Riwaka
Alpha acid
4.5–6.5%
Beta acid
4–5%
Total oil
0.8–1.5 mL
New Zealand
Key differences
When to pick Sterling
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
When to pick Riwaka
- More myrcene - pronounced citrus and resinous notes
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Sterling
NobleHerbalSpicyFloral
Only in Riwaka
TropicalPassion fruitGrapefruitCitrus
Property
| Property | Sterling | Riwaka |
|---|---|---|
| Alpha acid | 5.5–8.5% | 4.5–6.5% |
| Beta acid | 4–6% | 4–5% |
| Co-humulone | 22–28% | 29–38% |
| Total oil | 1–2 mL | 0.8–1.5 mL |
| Myrcene | 35–45% | 67–70% |
| Humulene | 16–18% | 8–10% |
| Caryophyllene | 5–8% | 2–6% |
| Farnesene | 15–19% | 0–1% |
| Origin | United States | New Zealand |
| Purpose | Aroma | Aroma |