Rheological researches of pastes prepared from the modified starches produced by Wielkopolskie Przdsiębiorstwo Przemysłu Ziemniaczanego were provided. The obtained flow and viscosity curves, using the viscosimeter BOHLIN VISCO 88, at the 20-1000 rt/min showed that most of thickeners were characterized by model “shear thinning” and for the solutions of starch hydrolysates: the yellow dextrins and oxidized starches the Newtonian fluid model were registered.