Sushi soy sauce belongs to prepared soy sauce, which will contain some seasonings such as salt and sugar, so the taste will be better than ordinary soy sauce. As for mustard, if the economic conditions are good, you can directly choose wasabi with higher cost and price, which is used in many high-end restaurants in Japan. If you like mustard with high spicy degree, you can choose mustard with horseradish as raw material, which can also meet this demand.
Some Fish History in China
The record of eating sashimi can be traced back to the Zhou Dynasty in China. Chinese archaeological team found five-year-old bronzes in Zhou Xuanwang, which clearly recorded that when Zhou Shi was entertaining friends, there were cooked soft-shelled turtles and raw carp slices.
The bronze wares of the Zhou Dynasty mainly recorded state affairs and important ceremonies. It can be seen that raw fish was a delicacy to entertain VIPs in the Zhou Dynasty, even a national dish. The Book of Songs also records the life of fish. The Book of Songs, Xiaoya, says, "Drink royal friends and lick turtles and carp." Turtle refers to steamed turtle, and "dried carp" is raw carp slices.
"Wei" means finely cut raw meat, which shows that it was not just fish that was eaten raw at that time. According to historical records, meat is made of fish, cattle, sheep and other meat. After the Qin and Han Dynasties, the fat of cattle and sheep was extremely scarce, almost only referring to the fat of fish, and later the word "silver carp" was derived, specifically referring to sashimi.