Dr. Rudi Hops: Profile & Substitutions

Description

Dr. Rudi was bred by HortResearch as a an open pollination of Smoothcone. Released in 1976. A true definition of a dual use as it has smoother bitterness and good aroma qualities.

Originally named Super Alpha but renamed in 2012 in honor of the "father of New Zealand hops", Dr. Rudi Roborgh.

There isn't a direct substitute.

Substitution Tip

If you can't find Dr. Rudi, the best alternatives are Citra® or Green Bullet™.

At A Glance

Profile Lemongrass, pine sap, floral, pithy citrus, and dried fruit. Crisp and clean bitterness.
Purpose Dual: Aroma and Bittering
Alpha Acid 10.0 - 12.0%
Substitutes Citra®, Green Bullet™
Pairs with Hallertau, Saaz
Beer Styles Winter Ale, Doppelbock, Pilsner, Blonde, Lager, English Bitter, Pale Ale, India Pale Ale

General Information

Country New Zealand
Aliases Dr Rudi, Super Alpha
Storage Stability
Retains 60 - 70% alpha acid contents after 6 months of storage at 68°F.

Brewing Chemistry (Acids & Oils)

Alpha Acid 10.0 - 12.0%
Beta Acid 7.0 - 8.5%
Cohumulone 33.0 - 39.0%
Total Oil 1.0 - 1.4 ml/100g
Myrcene 25.0 - 35.0%
Humulene 30.0 - 35.0%
Caryophyllene 8.0 - 12.0%
Farnesene < 1.0%

Growth & Cultivation

Yield 1000 - 1800 lbs/acre
Maturity Mid season
Growth Rate Vigorous
Cones Long and compact
Ease of Harvest Good

Discovery Tags

Flavor/Aroma
Citrus Floral Lemongrass Pine
Variety Name
Citra Green Bullet Hallertau Saaz Smoothcone
Beer Style
Blonde Ale Doppelbock English Bitters India Pale Ale Lagers Pale Ale Pilsner
Usage
Dual: Aroma And Bittering
Origin
New Zealand
Breeding/Supplier
Hortresearch
Last Updated
  • 2026-02-04 10:59:58
Source(s)

Hops Catalog

Navigating This Profile
  • The Stats: Use the Purpose and Alpha % to understand the hop's bitterness and aromatic strength.
  • Discovery Tags: Scroll down to find clickable tags for Flavor, Origin, and Usage.
  • The Network: Click any tag (like #Citrus or #New Zealand) to instantly view every other hop in our catalog that shares that trait.
Discovery Tag Spotlight

  • #Noble (Classics)

    Back to the roots. European "Noble" hops are the elegant, low-bitterness varieties that defined Pilsners and Lagers for centuries. Explore the spicy, floral heritage of the Old World. Explore #Noble Hops!
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Did you know?
  • Dwarf variety hops grow shorter in height than traditional varieties but, importantly, produce the same yield. This combination makes harvest easier.
Explanations
  • Storage: is based on the percentage of alpha acids remaining after 6 months at 20*F.
  • Oil composition percetages are based on the total percentage of oil in the hop. Example: 10 - 20% means that for the specific oil it is 10 - 20% of the overall oil make up.