AhtanumvsSouthern Promise
Ahtanum (aroma) and Southern Promise (dual purpose) serve different purposes. Comparing acids, aromas and character helps pick the right hop.
Ahtanum
Alpha acid
3.5–6.5%
Beta acid
4–6.5%
Total oil
0.5–1.7 mL
United States
Southern Promise
Alpha acid
9.5–14.5%
Beta acid
3.6–5.8%
Total oil
0.7–1.1 mL
South Africa
Key differences
When to pick Ahtanum
- More myrcene - pronounced citrus and resinous notes
- Aroma-focused - ideal for dry hopping
- Richer, more complex aroma profile
When to pick Southern Promise
- Higher alpha acid - stronger bittering
- Versatile - works for both bittering and aroma
Aroma profile and use
Shared aromas
CitrusFloral
Only in Ahtanum
GrapefruitGeraniumPineEarthyCedarLemon
Only in Southern Promise
HerbalFruityWoodyBerry
Property
| Property | Ahtanum | Southern Promise |
|---|---|---|
| Alpha acid | 3.5–6.5% | 9.5–14.5% |
| Beta acid | 4–6.5% | 3.6–5.8% |
| Co-humulone | 30–35% | 20–22% |
| Total oil | 0.5–1.7 mL | 0.7–1.1 mL |
| Myrcene | 45–55% | 21–25% |
| Humulene | 15–22% | 23–27% |
| Caryophyllene | 9–12% | 7–11% |
| Farnesene | 0–1% | 0–1% |
| Origin | United States | South Africa |
| Purpose | Aroma | Dual purpose |