This might make you think twice the next time you order pizza or unwrap a piece of candy. An ex-DuPont official recently leaked documents detailing how DuPont covered up 20-years of studies showing that the chemical Zonyl, produced by DuPont and used in the making of candy wrappers, microwave popcorn bags, pizza boxes and other food packaging, was degrading into the dangerous chemical perfluorooctanoic acid (PFOA) and seeping into the food products at levels three-times the FDA-recommended limit from 1967.