Personal hygiene : in order to protect against contamination of products, food plant employees are required to maintain satisfactory personal grooming and cleanliness and to practice good personal hygiene habits during all food handling operations. This inclues general cleanliness of clothing and body, including hair and fingernails. Employees should refrain from placing fingers in mouth, nose or ears, and from eating, chewing, spitting, and smoking during food handling operations, and avoid coughing and sneezing over unprotected products, food-contact surfaces, or food processing equipment.