The shape: high quality pure soybean meal was fracker or occasionally a small amount of powder, caking. The incorporation of zeolite powder, corn and other impurities and light colors, color, caking, visible white powder. In addition, if the beans are too many, the quality is poor.
The concept of color: high quality soybean meal was yellowish brown to light brown, consistent color. If the color white is urease too high, if the color red is low urease. Soybean meal is due to lack of heating, dark brown or dark yellow due to excessive heating due to excessive heating, the quality is poor.
Third, smell: high quality soybean meal with the smell of baked beans, there should be no corruption, rotten or coking taste, tofu taste and beany flavor (new production of soybean beany flavor). And mixed into the debris of the soybean meal smell a little soy flavor, the amount of large amount of doping is not bean flavor. When heating seriously excessive burning; insufficient heating in the mouth is the smell of raw soybean.
The experience of water safety: scattered within the hands of soybean meal, soybean meal, too much water feels lag by hand.
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