Dr. RudivsCTZ

Dr. Rudi and CTZ are popular dual purpose hops. Below you'll find a comparison of alpha and beta acids, aroma profiles and oil composition.

Dr. Rudi

Dual purpose

Alpha acid

10–12%

Beta acid

7–8.5%

Total oil

1.3–1.6 mL

New Zealand

CTZ

Dual purpose

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 Dr. Rudi

  • Higher beta acid - smoother, longer-lasting bitterness

When to pick CTZ

  • Higher alpha acid - stronger bittering
  • More essential oils - more intense aroma
  • More myrcene - pronounced citrus and resinous notes
  • Richer, more complex aroma profile

Aroma profile and use

No shared aromas - the varieties have divergent profiles.

Only in Dr. Rudi

ResinPineLemongrass

Only in CTZ

Black currantLicoriceCurryCitrusCannabisDank

Property

PropertyDr. RudiCTZ
Alpha acid10–12%14.5–17%
Beta acid7–8.5%4.5–5.5%
Co-humulone36–39%28–35%
Total oil1.3–1.6 mL2.5–4.5 mL
Myrcene28–30%45–55%
Humulene33–34%9–14%
Caryophyllene9–11%6–10%
Farnesene0–1%0–1%
OriginNew ZealandUnited States
PurposeDual purposeDual purpose

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