Over 15,000 pounds of frozen beef patties recalled over possible plastic contamination

Tyson Foods' subsidiary, Advanced Pier Foods, is recalling 15,738 pounds of beef patties due to potential contamination with small green soft plastic. The USDA classifies this as a Class 2 recall, indicating a remote chance of adverse health effects. The recall is voluntary, following complaints from a food service establishment. Only two patties were found contaminated, but 1,043 cases, or half a truckload, produced in September 2019, are being recalled. The product was shipped to Iowa and distributed to institutions, including schools, but not sold in retail stores.

What type of material was found to potentially contaminate the beef patties?

Where was the recalled product shipped before being distributed?