Kyrf, a type of liquor, was created through the fermentation and distillation of the kyrf fruit. This fruit is indigenous to the planet of Korbin. The resulting kyrf liquor possessed a strong flavor and was highly potent, especially for Humans, who were particularly susceptible to its intoxicating properties. In contrast, the native scrub lizards of Korbin displayed an immunity to kyrf's intoxicating effects. The Korbinites, a predominantly human population, were often addicted to kyrf.