The ServSafe food handler certificate is the most, popular certification awarded by ServSafe. It is, sometimes called a food handlers card or a food, workers permit. The purpose of the certification, is to ensure that food service workers have an, understanding of basic food safety principles. The, certificate is awarded after completing the course, and passing the assessment. The assessment will, test your knowledge in these five categories:, Basic Food Safety, Personal Hygiene,, Crosscontamination and Allergens, Time and, Temperature and Cleaning and Sanitation.