The role of the tare mill system
The back-end grinding is to scrape the residual endosperm from the bran flakes. Number of passes and contact length of grinding rollers
The number of passes depends on wheat quality, product quality and flour yield requirements, 4-5 passes.
The contact length depends on the quality of the product and the quality of the wheat. When milling high grade flour, a light grinding method is used and a longer number of passes is available.
When milling low grade flour, the front hull mill is mainly used to produce flour, and the number of passes is shorter.