Melba
Alpha acid
7–10%
Beta acid
2.5–5%
Total oil
2–4 mL
Australia
Ahtanum
Alpha acid
3.5–6.5%
Beta acid
4–6.5%
Total oil
0.5–1.7 mL
United States
Key differences
When to pick Melba
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
When to pick Ahtanum
- Higher beta acid - smoother, longer-lasting bitterness
- Richer, more complex aroma profile
Aroma profile and use
Shared aromas
GrapefruitCitrus
Only in Melba
Passion fruitSpicy
Only in Ahtanum
GeraniumPineEarthyFloralCedarLemon
Property
| Property | Melba | Ahtanum |
|---|---|---|
| Alpha acid | 7–10% | 3.5–6.5% |
| Beta acid | 2.5–5% | 4–6.5% |
| Co-humulone | 25–35% | 30–35% |
| Total oil | 2–4 mL | 0.5–1.7 mL |
| Myrcene | - | 45–55% |
| Humulene | - | 15–22% |
| Caryophyllene | - | 9–12% |
| Farnesene | - | 0–1% |
| Origin | Australia | United States |
| Purpose | Aroma | Aroma |