The project CONTATTO ZERO (ZERO CONTACT) aims to facilitate the access to a safe, hygienic and cheap food, for people in transit in the so-called "non-places". The conceptual node at the base of this work is the idea of "asepticity" and all the communicative coordinates come from the medical and pharmaceutical world, in particular from the packages for sterilized tools. The packaging system both assure the food hygiene and promote basic hygienic rules through appropriate awakening messages.