loading . . . PET trays keep food fresh, reduce waste and extend shelf-life Ghent University food packaging technology expert, Professor Peter Ragaert details the science behind packaging and how it forms part of the solution to reducing food waste. Did you know that the trays that package your meat, cheese, fish, fruit and vegetables are made of PET, the worldâs most recycled plastic? Like PET bottles, they are [âŠ] http://dlvr.it/TSpby8