Failure to plan, design, implement and upkeep good Safety Management Systems (FSMSs)along with a strong, positive food safety culture often leads to compromised food safety and subsequent foodborne illness outbreaks at food processing organizations. This phenomenon is observed with a much higher incidence in medium-and small-sized food companies. In this article, ice cream listeriosis outbreak case studies provide context for the importance of PRPs, GMPs, and process control in preventing foodborne illness outbreaks.