The sensitivity of the technological process of modification of grist is very high moisture grain. Thus, the
changing humidity ± 0.1%, extraction of flour changes with ± 0.8%, flour of top quality with 0,5% and the
second quality with ±1%.Influence of modification and vitrescence of the standard mass within a Grist
practically does not occur in the pithy Grist. Grain flow variation influences proportionally on changes in
the mining of products and to a lesser extent on the quality indices, because it changes loading specified in
technological equipment. Changing the composition of the different granulometrice intermediates leads to
variation of flow of product, depending on the amount of screening and denial.