Method and device for cleaning surfaces heavily contaminated with grease, starch and / or protein dirt, especially in the food industry

摘要

A process for cleaning surfaces which are heavily soiled with grease, starch and/or protein residues, especially for the food processing industry, in which the soiled surfaces are treated with an alkaline foam cleaning agent, characterized in that an effective amount of hydrogen peroxide solution is dosed to the chlorine-free alkaline foam cleaner at the latest 60 seconds before contact with the surface to be treated in order to obtain an effectively cleaning hydrogen peroxide foam. This avoids the use of chlorine which is harmful with respect to the environment, the hydrogen peroxide foam is surprisingly stable and the microbiological activity is unexpectedly good. A device which is especially appropriate for carrying out the process according to the invention is also provided.