Amethyst
Alpha acid
3.5–6%
Beta acid
7–8%
Total oil
0.4–1 mL
Czech Republic
Bobek
Alpha acid
3.5–9.3%
Beta acid
4–6.6%
Total oil
0.7–4 mL
Slovenia
Key differences
When to pick Amethyst
- Higher beta acid - smoother, longer-lasting bitterness
- Aroma-focused - ideal for dry hopping
When to pick Bobek
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- Bittering workhorse - efficient in the mash
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Amethyst
CitrusEarthySpicy
Only in Bobek
PineFloral
Property
| Property | Amethyst | Bobek |
|---|---|---|
| Alpha acid | 3.5–6% | 3.5–9.3% |
| Beta acid | 7–8% | 4–6.6% |
| Co-humulone | 20–28% | 26–31% |
| Total oil | 0.4–1 mL | 0.7–4 mL |
| Myrcene | 41–43% | 30–45% |
| Humulene | 18–20% | 13–19% |
| Caryophyllene | 5–7% | 4–6% |
| Farnesene | 0–1% | 4–7% |
| Origin | Czech Republic | Slovenia |
| Purpose | Aroma | Bittering |
Fuggle
Willamette