If Tang Ming is rich in special products, it has the reputation of "the hometown of yellow tofu". The square-inch Ruotang yellow tofu is famous all over the world for its unique cooking and flavor. It is "the 19 wonders of Yunnan, and Ruotang yellow tofu is hanged and sold". It set a record of selling 8 tons a day in Kunming Fair, and was praised by Japanese friends as "a must in China". It is characterized by delicate texture, fresh and tender taste, sliced, shredded, fried or cold. Sunflower seeds of pine forest are produced in the ethnic village of pine forest in the cold hinterland of northeast Yunnan. Sunflower is rooted in acidic soil, which has the advantages of long growth cycle, abundant sunshine, full seeds, round seeds, rich colors and thin inner shell. Chewing does not hurt the gums, and the food is moist and delicate, full of sweetness and meaningful aftertaste. It is a typical pure natural green food.

Ruotang is a small town in the southern section of Wumeng Mountain, which is famous for producing yellow tofu. Just like Jinhua ham and Tianjin roast duck, Ruotang yellow tofu calls place names and specialties together. What stands out here is the word "yellow". We often see white tofu, but this kind of tofu is yellow and square. Looking at it, delicate and dripping, appetite greatly increased; Eat it, it's tender and delicious, and it smells delicious.

The ancestor of China tofu culture was Liu An, the king of Huainan in Han Dynasty. It seems that this wise prince will always be remembered in people's hearts, because people have raised their rice bowls, and tofu is an indispensable ordinary dish on the table. After more than 2,000 years of spread and development, tofu has already gone abroad and become a delicious dish on the table of all colors and races in the world. China bean products and tofu are comparable to "Japanese tofu", which are made by scientifically extracting effective ingredients from eggs and natural land plants and adding some other edible accessories. But as we all know, this island country separated only by a strip of water has a lot of culture and science closely related to China. Ruotang tofu, like Japanese tofu, came to Ruotang during the national migration. If the pond is composed of Han, Hui, Yi, Miao and other ethnic groups, the Han people mainly migrated during the Hongwu period of the Ming Dynasty and brought tofu technology, which quickly spread and entered thousands of households.

For example, the Tang bronze craft, such as the Tang folk artist copper and aluminum craft, not only has a long history and cultural heritage, but also has a profound traditional art accumulation. There are more than ten kinds of products, such as pots, pots, spoons and pots. The finished product is unique in shape, exquisite in workmanship, high in quality, beautiful and durable.