Emerald SpirevsCTZ
Emerald Spire and CTZ are popular dual purpose hops. Below you'll find a comparison of alpha and beta acids, aroma profiles and oil composition.
Emerald Spire
Alpha acid
8.6–13%
Beta acid
3.5–4.5%
Total oil
-
United States
CTZ
Alpha acid
14.5–17%
Beta acid
4.5–5.5%
Total oil
2.5–4.5 mL
United States
Key differences
When to pick Emerald Spire
- Richer, more complex aroma profile
When to pick CTZ
- Higher alpha acid - stronger bittering
- Higher beta acid - smoother, longer-lasting bitterness
- More myrcene - pronounced citrus and resinous notes
Aroma profile and use
No shared aromas - the varieties have divergent profiles.
Only in Emerald Spire
PeachFruityWhiteGrapesWatermelonBubbleMelonHoneydew
Only in CTZ
Black currantLicoriceCurryCitrusCannabisDank
Property
| Property | Emerald Spire | CTZ |
|---|---|---|
| Alpha acid | 8.6–13% | 14.5–17% |
| Beta acid | 3.5–4.5% | 4.5–5.5% |
| Co-humulone | 38–39% | 28–35% |
| Total oil | - | 2.5–4.5 mL |
| Myrcene | 36–37% | 45–55% |
| Humulene | 10–11% | 9–14% |
| Caryophyllene | 7–8% | 6–10% |
| Farnesene | 0–1% | 0–1% |
| Origin | United States | United States |
| Purpose | Dual purpose | Dual purpose |