The soaked rate: 10-12 times
Moisture<5%
No sand
Saltness<2%
Color: black or brown
Weight: 80-100pieces/kg, 100-120pieces/kg, 120-140pieces/kg or 140-160pieces/kg
Size: 4.5-9cm
Shelf life: stored in cool,dry place at room temperature to mainain 2 years
No sugar, no preservatives and chemicals. Nutritives are easier for people to absorb