A method of pasteurization and vacuum packaging of food (2, 3), comprising the following steps: - providing a tray (1) having a first separation barrier (11) that divides the tray (1) into a first compartment (4) and a second compartment (5), the first compartment (4) having a first flexible bottom (6), the second compartment (5) having a second flexible bottom (7) and the first barrier (11) having a first channel (12) connecting the first compartment (4) with the second compartment (5)； - place the food (2, 3) in the first compartment (4) and in the second compartment (5)； - cover the tray (1) with a flexible protective layer (14) to form a container (15)； - providing a check valve (16) for unidirectional communication from inside the container (15) to the outside thereof； - pasteurize the contents inside the package (15) by means of microwaves； - close the valve (16) after pasteurization of the container (15) and allow the container (15) to cool, whereby a vacuum is created in the container (15) such that the container (15), with The vacuum packed food (2, 3) inside, has a central part of the first compartment (36) and a central part of the second compartment (38), where in the first compartment (4), a distance (d1) between the flexible protection layer (14) and the first flexible bottom (6) is less than a distance (p1) between the flexible protection layer (14) and the first flexible bottom (6) at the peripheral edges (8) of the first compartment (4), and where in the second compartment (5), a distance (d2) between the flexible protection layer (14) and the second flexible bottom (7) is less than a distance (p2) between the protection layer flexible (14) and the second flexible bottom (7) at the peripheral edges (9) of the second compartment (5) and, therefore, makes the first f Flexible wave (6) is concave in relation to the first compartment (4) and the second flexible fund (7) is concave in relation to the second compartment (5).Un método de pasteurización y e
