The invention provides a method of processing green coffee beans that improves the aromas and flavors of green coffee beans through simple means, allowing richly fragrant green coffee beans that have unique aromas to be obtained with ease. A method of processing green coffee beans includes a fermentation process by bringing green coffee beans, which are unground seeds from coffee berries, microorganisms, and nutritive substances that are metabolized by the microorganisms into contact with one another to cause fermentation, followed by a separation process of separating out only said green coffee beans that have passed through the fermentation process.提供由簡便地改善咖啡生豆的香味,而容易取得具有獨特香味之風味豐富的咖啡豆之咖啡生豆之處理方法。咖啡生豆之處理方法係具有使來自咖啡果實之未粉碎種子之咖啡生豆、與微生物、與由上述微生物所資化之資化成份接觸進行發酵處理之發酵步驟,以及僅選別上述發酵處理完畢之咖啡生豆之分離步驟。
