There is still a good market in Shanghai to do pot-stewed dishes business:

First, because Shanghai is a big city with a large population, all kinds of people exist.

Second, because Shanghai's economy and consumption power are also strong, and the marinated vegetables are convenient, fast and delicious, the marinated vegetables business still has a good market in Shanghai. As far as we know, many of the marinated vegetables businesses in Shanghai are going to Shanghai for short-cut gastronomy technology, so we can learn from Amway.