The area where akami and fat are mixed and properly oily

Red meas of a red tuna

Iwashi (sardine) is a small bluefish, typically about 10–20 cm long. It is rich in fat, offering a bold flavor, with its peak season from summer to autumn. The kanji "鰯" originates from "weak" (弱), reflecting its quick spoilage. As sushi, freshness is crucial, showcasing its rich, fatty taste and smooth texture.

The term 鰺 involves the use of "비릴" and refers to juvenile fish, specifically the horse mackerel. When fully grown, they can reach about 40 centimeters in length. The term "삼" indicates the third month in the lunar calendar and May in the solar calendar. It's said that this period is when they taste the best.