With the “AIPE 40: Una Storia per un Futuro di Sostenibilità” (a History for the Future of Sustainability) conference, AIPE, the Italian Association of Expanded Polystyrene, took the opportunity to reflect on the past and, above all, to look at the future of sintered expanded polystyrene (EPS): a longstanding key packaging material which has now been reinvented in the light of environmental questions