Progress
Alpha acid
5–7.5%
Beta acid
1.8–2.7%
Total oil
0.5–0.8 mL
United Kingdom
Zappa
Alpha acid
6–9%
Beta acid
8–9%
Total oil
1.8–2.5 mL
United States
Key differences
When to pick Progress
No clear differences - both varieties have a similar profile. Choose based on availability or country of origin.
When to pick Zappa
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- Higher beta acid - smoother, longer-lasting bitterness
- More myrcene - pronounced citrus and resinous notes
- Richer, more complex aroma profile
Aroma profile and use
Shared aromas
MintFruity
Only in Progress
GrassySweetHoneyBlack currantFloral
Only in Zappa
SavoryMangoPassion fruitTropicalCitrusPineSpicyFresh
Property
| Property | Progress | Zappa |
|---|---|---|
| Alpha acid | 5–7.5% | 6–9% |
| Beta acid | 1.8–2.7% | 8–9% |
| Co-humulone | 25–27% | 40–45% |
| Total oil | 0.5–0.8 mL | 1.8–2.5 mL |
| Myrcene | 25–30% | 64–65% |
| Humulene | 40–47% | 4–5% |
| Caryophyllene | 12–15% | 8–9% |
| Farnesene | 0–1% | 0–1% |
| Origin | United Kingdom | United States |
| Purpose | Aroma | Aroma |