Cleaning and disinfection of blenders used in hospital kitchens

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Abstract
The efficiency of a range of methods used to clean and disinfect blenders was compared. Blenders with metal, plastic and glass goblets were experimentally contaminated with Klebsiella aerogenes after which they were cleaned and disinfected by (a) cold water rinse, (b) detergent wash, (c) detergent wash and disinfectant soak, (d) detergent wash and boiling water rinse and (e) autoclaving. Autoclaving was the only procedure that sterilized the blenders but this could only be used for blenders with metal goblets. A detergent wash with or without chemical disinfection followed by a boiling water rinse was found to be the most effective method of cleaning and disinfecting all three types of blender.