Dr. Rudi was bred by HortResearch as a an open cross of Smoothcone. Released in 1976.
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.
Aliases | Dr Rudi, Super Alpha |
Profile | Lemongrass, pine sap, floral, pithy citrus, and dried fruit. Crisp and clean bitterness. |
Country | New Zealand |
Substitutes | Citra®, Green Bullet |
Pairs with | Hallertau, Saaz |
Purpose | Dual: Aroma and Bittering |
Yield | 1000 - 1800 lbs/acre |
Storage | Retains 60 - 70% alpha acid contents after 6 months of storage at 68°F. |
Beer Styles | Winter Ale, Doppelbock, Pilsner, Blonde, Lager, English Bitter, Pale Ale, India Pale Ale |
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 Rate | Vigorous |
Cones | Long and compact |
Maturity | Mid season |
Ease of Harvest | Good |