For the same series of flour milling machine, flour from two sets of mills are better than the flour milled by one group mill.

In the process of milling, the two sets of mills have different functions, one is for grinding bran of wheat, and another one is for grinding the core of wheat. If only one group of mill adopted, the mill is used for grinding both bran and core at the same time.Therefore,  the processing technology of the two sets of mills is better, and in comparison the flour has a better taste and color.