In the second episode of "A Bite of China 2", "Heart Story", Zhou Xiaoyan once again appeared on the scene, demonstrating her knife skills with three fresh deboned fish and three sets of ducks.

Knife skills are the core skills of Chinese cooking. The theme of the subtitles in the documentary "Heart Story" in the second episode of "Tongue 2" is about knife skills. Starting from the orchid knife technique, all are demonstrated by Huaiyang cuisine master Zhou Xiaoyan.

The scene opens with an old man playing the pipa, and then shows two chefs wearing dark T-shirts practicing slicing and shredding radishes at the Eight Immortals table in a courtyard. Later, the music rhythm became faster, and a scene of Zhou Xiaoyan cutting lettuce appeared, and the subtitles explained the orchid knife technique. After Zhou Xiaoyan cut the lettuce, she lifted the lettuce vertically to draw out regular and connected patterns, showing a network shape; then two different kitchen knives appeared, and Zhou Xiaoyan deboned the carp, followed by three sets of duck deboning, and then three sets of lettuce deboning. The finished product of fresh boneless fish, after the knife is cut through the middle of the fish body, it is filled with meat filling, which looks very attractive. Finally, the shot ends with three sets of finished ducks.