The soybeans of the city are known for their successful development of specialty tofu (including colored tofu) using modern technology, based on hunan tofu and the old tofu tradition in the northeast, which not only has a pleasant smell of soybeans, but also retains more soybeans (a wide reduction of the rate and effect of ageing). The soybeans and soybean (or powder) are the main raw materials, without any chemically synthesized pigment, which is nutritious and attractive, making hotels and homes more colorful. The new generation of tofu heirs, the integration of technology, tastes, nutrition and hygiene, the analysis of soybeans nutrition and the elimination of causal factors, the use of water quality in accordance with the criteria of gb5749-85, and the criteria of bg2711 for non-fermentation bean products in accordance with the gb/t10229 procedure. The absence of any waste throughout the production process greatly increases the value added of the "oriental bean" and the orient t...