The present invention relates to a method for finishing fibers and/or fabrics, the intention being to reduce the adhesion of microorganisms, especially of bacteria and/or yeasts, to the fibers and/or fabrics. The method involves applying a composition ZS comprising selected hydrophilic silane derivatives to the fibers and/or fabrics. The invention further relates to a method for the quantitative determination of the adhesion of microorganisms to fibers and/or fabrics.
