Abstract. According to investigations made on barley grinds it was stated that the most simple parameter for determining the homogeneity of grits is the Coefficients of Variation (CV.) and the exponent n of the Rosin-Rammler's equation. Both of that can be considered as an appropriate physical property of agri­cultural materials, which mainly depend on the sort and condition of feed grain, machine parameters, etc., showing how the material is desintegrated.