Certified. Distinct in flavor, these Cento San Marzano tomatoes are grown in the Sarnese Nocerino area of Italy, renowned for its especially fruitful soil as a result of its proximity to Mount Vesuvius. These San Marzano tomatoes are certified by an independent third=party agency and are produced with the proper method to ensure superior quality. Find my field: Pac. pacTraceability.com. Trust your family with our family. Non GMO. BPA free can lining. www.cento.com. Product of Italy.