Southern PromisevsWillamette
Southern Promise and Willamette are popular dual purpose hops. Below you'll find a comparison of alpha and beta acids, aroma profiles and oil composition.
Southern Promise
Alpha acid
9.5–14.5%
Beta acid
3.6–5.8%
Total oil
0.7–1.1 mL
South Africa
Willamette
Alpha acid
4–7.2%
Beta acid
3–4.5%
Total oil
0.6–1.6 mL
United States
Key differences
When to pick Southern Promise
- Higher alpha acid - stronger bittering
When to pick Willamette
- More myrcene - pronounced citrus and resinous notes
Aroma profile and use
Shared aromas
CitrusFloral
Only in Southern Promise
HerbalFruityWoodyBerry
Only in Willamette
IncenseElderberryCaramelCurry
Property
| Property | Southern Promise | Willamette |
|---|---|---|
| Alpha acid | 9.5–14.5% | 4–7.2% |
| Beta acid | 3.6–5.8% | 3–4.5% |
| Co-humulone | 20–22% | 28–35% |
| Total oil | 0.7–1.1 mL | 0.6–1.6 mL |
| Myrcene | 21–25% | 30–40% |
| Humulene | 23–27% | 20–27% |
| Caryophyllene | 7–11% | 7–8% |
| Farnesene | 0–1% | 5–6% |
| Origin | South Africa | United States |
| Purpose | Dual purpose | Dual purpose |