Among the options that do not help encourage food safety, "using good customer service skills" does not directly encourage food safety. Although good customer service is important for business, it does not specifically address food safety practices such as proper food handling, inspections, or hygiene. Periodic inspections, proper food handling behaviors, management commitment to food safety, employee training, and the implementation of food safety systems are key factors that encourage food safety.

Thus, "using good customer service skills" is the option that does not help encourage food safety.