Usually, we can often see snapper slices and sashimi in sushi restaurants, which shows that snapper slices can be eaten raw.

However, eating soft-shelled turtle raw is unsanitary. As we all know, seafood carries parasites. If parasites spread to human body, it will bring many different diseases. Although the chef who makes sashimi will ensure the freshness and hygiene of the ingredients, it will be accompanied by cooking wine and mustard when eating. Cooking wine can be used for seasoning, and mustard can be used for sterilization and appetizing. Soaking parasites in mustard solution 15 minutes is still not enough to kill parasites; After soaking for 20 minutes, the higher concentration of mustard seed solution can only kill 3.33% of parasitic larvae; After soaking for one hour, the mustard seed solution can kill all the larvae.