Removal of biofilms and stubborn soil by pressure washing.

摘要

Pressure washing is widely used in the food industry. The results of an earlier study on microbial removal are reported here. This paper also reports on the removal from surfaces of a stubborn soil of cream substitute. Washing with cold water, even after the application of disinfectant, had no visible effect on the soil. Washing with hot water alone caused some removal from the edges of the soil but only when using water at high pressure. Applying a disinfectant, followed by hot water at high pressure produced the greatest, but not complete, soil removal. The study indicates that mechanical abrasion is also required for the removal of stubborn soils. All rights reserved, Elsevier.