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When we choose what to buy, we usually look at the expiration date, brand, quality seals, ingredients, and price. But how do you know if the manufacturer is fully honest – or that the product was properly stored during shipping or while on the shelf? The answer could lie in smart food packaging, which is designed to help us trace the real expiration date and prevent counterfeiting. So, what is smart packaging and what does 3D printing have to do with it? We asked Chantal Tracey, a PhD student at ITMO’s ChemBio Cluster and a member of SCAMT Institute’s 3D Printing of Functional Nanomaterials Group.