Swan-labelled foam cleaning for the food industry, including meat industry, dairies, breweries, fishing industry etc. Provides a penetrating, fine-pored foam which extends the reaction time of e.g. vertical surfaces. Quickly and effectively dissolves food-related soiling, including protein deposits, fish slime, scales, etc. Especially suitable for heavily soiled surfaces. Foam cleaner 3 should not be used on aluminium. pH 13.7.