Food Hygiene can be maintained by avoiding cross-contamination between raw and ready-to-eat food is one of the most important aspects of food hygiene. Separate knives and cutting boards must be used for the different foods. Raw food must be stored below other food in the refrigerator to prevent drips that could contain bacteria. Food must be chilled to the proper temperature at all times and must be cooked to a temperature that kills bacteria. Disinfecting food preparation areas and cleaning used equipment also are important food hygiene practices.