Derived from a cross between Fuggles and the Russian hop Serebrianker. Good for flavor and aroma, but an acceptable bittering hop. Ales and Lagers. Alpha Acid: 6.3% WARNING: Hops can cause malignant hyperthermia in canines, usually with fatal results. Even small amounts can trigger a potentially deadly reaction, including spent hops from the brewing process. Immediate action should be taken if hops are consumed by a dog.