Using time-honored Japanese fishing practices, yellowtail (Amberjack) is harvested using sustainable and efficient practices to ensure the highest quality product for our customers. 


Our yellowtail are raised in a stress-free environment, yielding the whitest fillets with the clean, fresh flavors of the sea. Harvested at peak seasonality and flavor, our Hamachi are processed using a patented method that makes Onsui's product superior to all others currently available on the market.


Why Cho-Rei-Kun Hamachi is special


Onsui's patented Cho-Rei-Kun technology, used in Japan since 2009, consists of multiple, precise steps during harvest that result in a frozen hamachi that is bright in color, has higher yield, longer shelf life, and no sour aftertaste. Read more about this state-of-the-art method.