Ruiru 11 coffee, an Arabica coffee variety known for its resilience and adaptability, is primarily cultivated in East African coffee-producing countries, with Kenya and Tanzania being notable growing regions. Thriving at elevations ranging from 1,200 to 2,100 meters above sea level, Ruiru 11 coffee embodies the spirit of innovation and determination in the face of coffee diseases, making it a valuable addition to the coffee world.