DESCRIZIONE
A process of packaging a product (P) comprising driving at least the precursor body in a machine direction along the operating path, forming into it one or more longitudinal rows of adjacent tray-shaped elements (8), loading one or more of said products (P) into a respective cavity of said tray-shaped elements; forming a through opening at the corner regions of the tray-elements; tightly fixing a plastic film (11) to close the top opening of said tray-shaped elements (8); transversely separating the closed tray-shaped elements forming closed trays. An apparatus (1) for performing the above process is also disclosed.