What's Brother Mao's dish?

According to the query of Tik Tok platform, Brother Mao's dish is walnut. Brother Mao is a blogger of Tik Tok. In the video, he showed how he carefully handled and maintained his walnuts, thus making them more beautiful and shiny. This kind of behavior belongs to the category of Wan Wen Walnut, which is a traditional China handicraft, and usually consists of two rubbed dry kernels. After careful care and play, its surface produces natural luster and texture.