Speaking to Viral, Fátima Poças, professor ate the Faculty of Biotechnology, Universidade Católica Portuguesa - Porto and director of the National Reference Laboratory for Materials & Packaging (LNRME), explains that these ice-cream cartons, depending on the type of plastic, may not be suitable for reuse and, for this reason, "it's not right to use them for purposes" other than preserving the original product other than to preserve the original product.