What are the rules when eating sushi?

Prepare a dish of fish, soy sauce and mustard in advance.

Take a sip of tea to clean your mouth or eat a piece of ginger to wake up your stomach.

Turn the sushi upside down and dip the fish in soy sauce a little at a time.

Sushi is one of the traditional Japanese cuisines. The main ingredient is rice slices seasoned with sushi vinegar and keeping human body temperature, and fish, seafood, vegetables or eggs are used as ingredients, which are delicious and deeply loved by Japanese people. Sushi has been recorded in heian period with the code name "Yan Xi Style" completed in 927 AD. Sushi at that time refers to a way to preserve fish. Rub the salt on the fish, press it with a heavy object and let it ferment naturally. When it is sour, you can eat it wrapped in crystal rice (crystal rice should be cooked and cooled before rolling it repeatedly). According to "Biography of Dongyi-Biography of Japan", Japanese people eat seafood, that is, sashimi, which is wrapped in rice grains to form a fast food.