The raw materials of beef mince are all cow scraps, which in the old days were used by poor families to supplement their meat. In the 1980s and 1990s, ground stalls, carts and other self-employed people began to appear.
Then a wave of people who were not afraid of hard work and dirt started the business of pushing carts to sell beef mince. It is said that at that time, freshly subdivided under the cow as long as 40 cents a catty, but cooked tripe can be sold for 2 yuan a string, you can roam around the cow meat trolleys do not need to store rent, it seems to be a pile of very good business.