It is best to wash the salmon bought in the supermarket with pure water 1-2 times. Because I often see some aunts who don't pay much attention to hygiene uncover the plastic wrap covering the fish and touch the fish with their fingers. . If you eat sashimi, it won't be heated at high temperature. Imagination is disgusting. . As for the fishy smell, you don't have to worry about it if it is accompanied by soy sauce and wasami for sashimi. Seasoning will mask the taste. And it's normal for fish to smell a little. Also, you'd better eat it cold after you buy it. This can also reduce the smell.