Recently, RICHI Machinery and Peru customers signed an annual production of 60,000 tons of puffed soybean powder project. The total investment is US$900,000. The project uses imported soybeans as raw materials and adopts wet puffing technology. After the project is completed, it will produce 60,000 tons of puffed soybean powder for feed annually.

1. Production process of puffed soybeans
   The production process of puffed soybeans includes cleaning, crushing, pulverizing, tempering, puffing, cooling and other steps. First, the soybeans need to be cleaned to remove impurities, then broken into 4-8 petals, and then crushed into soybean powder that can pass through a certain aperture. Then, the soybean powder enters the conditioner for conditioning to improve the puffing effect. Finally, after the high temperature and high pressure treatment of the puffing machine, the soybean powder is puffed into puffed soybeans, and then packaged after cooling.
2. Factors affecting the yield of puffed soybeans
   The yield of puffed soybeans is affected by many factors. First, the variety and moisture content of soybeans will directly affect the puffing effect. Generally speaking, the lower the moisture content of soybeans, the higher the expansion rate during puffing, and the more puffed soybeans produced. Secondly, differences in production processes and equipment will also lead to changes in the yield of puffed soybeans. Different puffing machine models, die hole sizes, and annular gaps will affect the puffing effect and yield.
3. Nutritional value and application areas of puffed soybeans
   Puffed soybeans not only retain the nutrients of soybeans themselves, such as protein, fat, carbohydrates, etc., but also denature protein and gelatinize starch through high temperature and high pressure treatment, thereby improving digestibility. At the same time, puffed soybeans also have a strong oily aroma and good palatability, and are widely used in livestock and aquatic feeds. Especially in piglet feed, puffed soybeans can replace soybean meal and fish meal, prevent piglet diarrhea, and increase growth rate.

One ton of soybeans can produce about 500-600 kilograms of puffed soybeans after puffing. As a highly nutritious and easily digestible feed raw material, puffed soybeans have broad application prospects in the fields of livestock and aquaculture. With the continuous development of the feed industry, the production technology and application fields of puffed soybeans will continue to expand and improve.