Among all the reasons cassava flour gets rejected, fineness ranks first. Yet most producers cannot accurately state what the standard actually is — or where the problems in their production line are really coming from.

This video breaks down the HQCF fineness standard in full: 95% passing through a 60-mesh sieve. It also goes deeper into the two mistakes most producers make that kill their fineness pass rate.

Mistake 1 - The grinding stage. Insufficient crushing leaves the mash with chunks larger than a grain of rice. Over-processing turns it into a smooth paste. Either scenario causes trouble downstream.

Mistake 2 - The sieving stage. A proper sifter separates on-spec material from off-spec particles. But many operations rely on a single screen deck with the same mesh for every batch and no recycle loop. The result: fineness varies from batch to batch, and customers start returning the flour.

The right equipment combination can push a pass rate from 80% all the way to 99%. Follow Henan Jinrui — we can customize the right cassava flour processing equipment to meet your specific needs.