Polaris
Alpha acid
18–23%
Beta acid
4.5–6.5%
Total oil
4–5 mL
Germany
Stirling
Alpha acid
6–12%
Beta acid
4–6%
Total oil
1.3–1.9 mL
United States
Key differences
When to pick Polaris
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
When to pick Stirling
No clear differences - both varieties have a similar profile. Choose based on availability or country of origin.
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Polaris
MintMentholPineapple
Only in Stirling
HerbalCitusSpicyFloral
Property
| Property | Polaris | Stirling |
|---|---|---|
| Alpha acid | 18–23% | 6–12% |
| Beta acid | 4.5–6.5% | 4–6% |
| Co-humulone | 22–29% | 21–28% |
| Total oil | 4–5 mL | 1.3–1.9 mL |
| Myrcene | 49–51% | 44–48% |
| Humulene | 20–35% | 19–23% |
| Caryophyllene | 8–13% | 5–7% |
| Farnesene | 0–1% | 11–17% |
| Origin | Germany | United States |
| Purpose | Dual purpose | Dual purpose |