CentennialvsIdaho Gem
Centennial and Idaho Gem are popular dual purpose hops. Below you'll find a comparison of alpha and beta acids, aroma profiles and oil composition.
Centennial
Alpha acid
7–12%
Beta acid
3.5–5.5%
Total oil
1–3 mL
United States
Idaho Gem
Alpha acid
11–14%
Beta acid
5–7%
Total oil
1.3–2.3 mL
United States
Key differences
When to pick Centennial
No clear differences - both varieties have a similar profile. Choose based on availability or country of origin.
When to pick Idaho Gem
- Higher alpha acid - stronger bittering
- Higher beta acid - smoother, longer-lasting bitterness
- Richer, more complex aroma profile
Aroma profile and use
Shared aromas
Citrus
Only in Centennial
PineFloralGrapefruitTangerine
Only in Idaho Gem
PineappleCherryCandiedHerbalSpicyMintStone fruitRedberryMojitoSweet
Property
| Property | Centennial | Idaho Gem |
|---|---|---|
| Alpha acid | 7–12% | 11–14% |
| Beta acid | 3.5–5.5% | 5–7% |
| Co-humulone | 23–30% | 40–45% |
| Total oil | 1–3 mL | 1.3–2.3 mL |
| Myrcene | 55–65% | - |
| Humulene | 10–20% | - |
| Caryophyllene | 5–7% | - |
| Farnesene | 0–1% | - |
| Origin | United States | United States |
| Purpose | Dual purpose | Dual purpose |