Foam P is an acid foam detergent to be used for the periodical or daily treatment of surfaces present in bottling industries, in the dairy field and in general in the food industry and the zoo-technical sector. The formulation is also ideal for the removal of protein dirt present in the fish sector. Foam P is able to effectively remove different kinds of inorganic contamination (limestone) present on surfaces. The excellent hanging power on vertical surfaces and a quick rinsing make its utilization easier.