Introduction to yuba：

  The yuba is yellow and white in color, rich in protein and a variety of nutrients, soak it in water (cool in summer and temperature in winter) for 3-5 hours to unravel. Yuba is heated and boiled soy milk, after a period of heat preservation, a film is formed on the surface, which is picked out and drooped into branches, and then dried. Yuba has high nutritional value, is easy to store, and is convenient to eat. It is favored by consumers at home and abroad.

Yuba processing steps：

1. Soybean selection
The main raw material for making yuba is soybeans, and its main components are protein and fat. The quality of soybeans directly affects the taste and quality of the finished yuba. Choose large, plump, golden, high-quality soybeans with good gloss and less impurities. You can also choose fragrant earthy soybeans. The ground soy milk will be particularly fragrant.
2. Soak beans
The amount of soaking water is about 4 times that of soybeans, and it is required that the soybeans do not appear on the water surface after they swell. The standard for soaking beans is that the soybeans are swelled and peeled, and the two flaps are split into a flat plate, but the surface of the water cannot be foamed. Generally, the soaking time is about 16-20 hours in winter, 8-12 hours in spring and autumn, and about 6 hours in summer. The moisture content of the soaked soybeans is 100%.
3. Refining filter
Before making soy milk with the soaked soybeans, pay attention to cleaning the soybeans and pick out individual dark-colored soybeans or impurities in them. The soy milk produced in this way will be purer. Refining is to destroy the cell tissue of soybeans, so that the soybean protein is dissolved out with water. When refining, it is necessary to inject 700%-800% water of the raw material to grind into fine milky white soy milk. Then the ground pulp is separated from the soybean milk and the soybean dregs by using a spinner or a squeezer.
4. Boiled pulp
Boiled pulp is a key link in the production of yuba. The operation is slightly different in different areas. Usually the operation steps are: first boil the soy milk with high temperature, then lower the temperature, and at the same time skim the white foam in the pulp, after 5-6 minutes, the pulp surface will naturally form a film , Which is the yuba film. You can copy the article at this time. It is advisable to copy the strips frequently, which can slow down the saccharification of the pulp and increase the yield of yuba. Lift the leather out and place it on the material bar.

Yuba drying process：

  Push the evenly hung yuba material truck into the air-energy heat pump yuba drying room, and start the intelligent parameter setting: the first step is to dry and preheat 50°C to 60°C. The second step is high temperature drying and a large amount of moisture removal stage, the temperature is about 65 ℃. The third step is the constant temperature drying stage at 60°C, the relative humidity is controlled below 50%, and the moisture is reduced to about 15%. In the fourth cooling stage, the drying time is about 5 hours, and the water content is about 8%. The shutdown will be completed when the yuba enters normal temperature.

Precautions:
It is worth noting that the yuba belongs to the drying of food materials. The entire drying process needs to pay attention to controlling the temperature. If the temperature is too low, it is easy to rot, and the temperature is too high to break or burst, which affects the appearance. The temperature control determines the puffing of the yuba and the surface Important qualities such as oil content and color. In addition, do not quickly dehumidify at the beginning of the drying process. If the humidity is not properly controlled, the packing process will cause the yuba to break, which will affect the yield of the finished yuba and cause waste.

Recommendation of yuba dryer/drying machine

Commercial 100-3000kg/h large amount of dehydration wide application and easy operation

  Heat pump drying machine use the principle of inverse Carnot cycle. It absorbs low-temperature heat energy in the air, which becomes high-temperature heat energy after efficient heat collection and integration by the heat pump system, and is transported to the drying room for cyclic heating and drying of materials.It refers to exhausting the hot and humid air in the drying room directly to the outside of the drying room through dehumidification device, and then replenishing natural fresh air.

  Hot air circle drying machine belongs to high temperature heat pump unit. Its working principle is: the working fluid of the heat pump is compressed by the compressor, becomes high temperature and high pressure gas, enters the condenser, condenses and liquefies the heat, and is used for air heating in the drying room. The moisture in the material is vaporized and evaporated by the form of hot air, and the evaporated water vapor is discharged by the moisture discharge system, thereby achieving the purpose of drying the drying material.


Yuba drying video：