Southern PromisevsZeus
Southern Promise (dual purpose) and Zeus (bittering) serve different purposes. Comparing acids, aromas and character helps pick the right hop.
Southern Promise
Alpha acid
9.5–14.5%
Beta acid
3.6–5.8%
Total oil
0.7–1.1 mL
South Africa
Zeus
Alpha acid
13–17.5%
Beta acid
4–6.5%
Total oil
2.4–4.5 mL
United States
Key differences
When to pick Southern Promise
- Versatile - works for both bittering and aroma
- Richer, more complex aroma profile
When to pick Zeus
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- More myrcene - pronounced citrus and resinous notes
- Bittering workhorse - efficient in the mash
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Southern Promise
HerbalFruityWoodyBerryCitrusFloral
Only in Zeus
Black currantLicoriceCurryPungent
Property
| Property | Southern Promise | Zeus |
|---|---|---|
| Alpha acid | 9.5–14.5% | 13–17.5% |
| Beta acid | 3.6–5.8% | 4–6.5% |
| Co-humulone | 20–22% | 28–40% |
| Total oil | 0.7–1.1 mL | 2.4–4.5 mL |
| Myrcene | 21–25% | 45–60% |
| Humulene | 23–27% | 9–18% |
| Caryophyllene | 7–11% | 6–11% |
| Farnesene | 0–1% | 0–1% |
| Origin | South Africa | United States |
| Purpose | Dual purpose | Bittering |