Crystal
Alpha acid
2.8–6%
Beta acid
4.5–8.5%
Total oil
0.8–2.3 mL
United States
Progress
Alpha acid
5–7.5%
Beta acid
1.8–2.7%
Total oil
0.5–0.8 mL
United Kingdom
Key differences
When to pick Crystal
- More essential oils - more intense aroma
- Higher beta acid - smoother, longer-lasting bitterness
- More myrcene - pronounced citrus and resinous notes
When to pick Progress
- Higher alpha acid - stronger bittering
Aroma profile and use
Shared aromas
FloralFruityBlack currant
Only in Crystal
WoodyGreenSpicyCinnamonNutmeg
Only in Progress
GrassyMintSweetHoney
Property
| Property | Crystal | Progress |
|---|---|---|
| Alpha acid | 2.8–6% | 5–7.5% |
| Beta acid | 4.5–8.5% | 1.8–2.7% |
| Co-humulone | 20–26% | 25–27% |
| Total oil | 0.8–2.3 mL | 0.5–0.8 mL |
| Myrcene | 30–55% | 25–30% |
| Humulene | 20–30% | 40–47% |
| Caryophyllene | 5–12% | 12–15% |
| Farnesene | 0–1% | 0–1% |
| Origin | United States | United Kingdom |
| Purpose | Aroma | Aroma |
Hersbrucker