After his death as the boss, Wang Jindou changed his name to "Lao Wang Tang Mianjiao", and his son Wang Defa inherited his father's business, which enabled this flavor snack to develop. In 198, Wang Defa was invited to teach in Zhengzhou.

Up to now, Luoyang, Zhengzhou and other places have restaurants specializing in "Xin 'an Instant Noodles Corner". In recent years, Xin 'an "Fangji Instant Noodles Corner" has been innovated on the basis of traditional technology, with better flavor. Since 1986, it has been rated as "Luoyang Famous Snack" for many times, and in 1993, it was invited to participate in Beijing's "Asian Games" food festival, which was widely praised.