It is generally said that this fish is best eaten in the rainy season of June. However, the fishers know that the best isakican be eaten in the winter as kan-isaki prepares for the harsh cold weather by gaining more fat, which results in a delicious, fatty taste when it reaches the table. It is best eaten fresh as sushi or sashimi.
梅雨時が旬の魚といわれますが、越冬のために脂肪をためた冬のイサキの味は一般的な旬 である梅雨時より上という方もいます。