Dr. RudivsDelta

Dr. Rudi (dual purpose) and Delta (aroma) serve different purposes. Comparing acids, aromas and character helps pick the right hop.

Dr. Rudi

Dual purpose

Alpha acid

10–12%

Beta acid

7–8.5%

Total oil

1.3–1.6 mL

New Zealand

Delta

Aroma

Alpha acid

5.5–7%

Beta acid

5.5–7%

Total oil

0.5–1.1 mL

United States

Key differences

When to pick Dr. Rudi

  • Higher alpha acid - stronger bittering
  • More essential oils - more intense aroma
  • Higher beta acid - smoother, longer-lasting bitterness
  • Versatile - works for both bittering and aroma

When to pick Delta

  • Aroma-focused - ideal for dry hopping

Aroma profile and use

No shared aromas - the varieties have divergent profiles.

Only in Dr. Rudi

ResinPineLemongrass

Only in Delta

CitrusMelonSpicy

Property

PropertyDr. RudiDelta
Alpha acid10–12%5.5–7%
Beta acid7–8.5%5.5–7%
Co-humulone36–39%22–24%
Total oil1.3–1.6 mL0.5–1.1 mL
Myrcene28–30%25–40%
Humulene33–34%25–35%
Caryophyllene9–11%9–15%
Farnesene0–1%0–1%
OriginNew ZealandUnited States
PurposeDual purposeAroma

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