Making yam into powder is a process of deep processing of yam. Before making yam into powder, yam should be dried first, and the moisture content of dried yam should be kept at about 10%. Yam can be dried using a mesh belt yam dryer or a heat pump yam drying room.

After yam drying, it will enter the crushing stage. The crushing process is divided into two steps: coarse crushing and fine crushing.

The first step is to put the yam slices into the coarse crusher for crushing. After crushing, pour the crushed yam into the material basket. At this time, the crushed yam is generally granular.

The second step of the crushing process is to put the coarsely crushed granular yam into the fine crusher for crushing. When pouring the material, use a plastic shovel to feed at a uniform speed. Do not pour it all at once to avoid clogging the crusher.

After crushing, the fineness of the yam powder should be: 100-200 mesh, and the minimum should not be lower than 80 mesh. When finely crushing, check whether there are particles in the powder. If there are particles, it can be regarded as unqualified and cannot be used. If the material powder fineness is normal and there are no particles, it is regarded as qualified for next use.