Patent ID: 7226898

Claim:
A method of disinfecting a hard surface in a CIP cleaning process comprising: a. washing the surface with an alkaline or acid agent; b. rinsing the surface with water; c. applying a composition to the surface for 1 to 120 minutes, wherein the composition consists of: i. from about 0.05 ppm to about 0.5 ppm of a surfactant, wherein the surfactant is selected from the group consisting of sulfonic acids, sulfonates, alkylamine oxides, ethercarboxylic acids, alkylether sulfates, and mixtures thereof; and ii. a percarboxylic acid, wherein the percarboxylic acid is selected from the group consisting of peracids having the general formula R 2 —O 2 C—(CH 2 ) x —CO 3 H, where R 2 is hydrogen or a C 1 -C 4 alkyl group and x is a number from 1 to 4; phthalimido-percarboxylic acids, where the percarboxylic acid segment has from 1 to 18 carbon atoms; peracids having the general formula R 1 —CO 3 H, where R 1 is an alkyl or alkenyl group having 1 to 18 carbon atoms; salts thereof; and mixtures thereof; and iii. water, and iv. optionally a complexing agent; and d. rinsing the surface with water.