Our karashi mentaiko (spicy Pollock cod roe), are made with well-selected Alaskan Pollock, which are marinated in a high-quality kombu broth. Made using the same production method that has remained unchanged since the company’s founding, no preservatives are used to ensure stability in flavor without mass production. Believing that quality is more important than quantity, Isaya, Ltd is particular about using fresh cod roe and put our heart into making the best karashi mentaiko.