Food contamination comes in many forms, from biological contaminants to physical hazards. With so many entry points for contamination, food manufacturing facilities have to make sure they have procedures in place to prevent all types of contamination; that includes contamination from food packaging.
While less common than other types of contamination, food packaging can still be a source of foreign materials that find their way into the food supply. Because it is less common, it is a threat that food manufacturers can easily overlook. But putting procedures in place to safeguard against contamination due to food packaging is an important part of a strong culture of food safety.