Abstract: A device (24) for injecting at least two pressurized fluids into the axially oriented neck (20) of a container (18) in the preform state in order to form a final container by deforming the container (18) by successively injecting a first pressurized fluid and then a second pressurized fluid, the device (24) including: a first duct for supplying a first pressurized fluid; a second duct (30) for supplying a second pressurized fluid; and an axial nozzle (32) into which the second supply duct (30) opens, the nozzle being intended to be placed concentrically inside the neck (20) with a radial gap (j) so as to allow the first pressurized fluid to be injected into the container (18) through the radial gap (j), characterized in that the second pressurized fluid used for forming the container (18) consists of an incompressible filling liquid.

Abstract: A method of forming a container (18), includes: a partial expansion first step (E1) during which the container (18) is filled with a pressurized blowing gas (G); a second step (E2) of filling the container (18) during which the container (18) is filled with a filling liquid (L) that expels the blowing gas (G) through an outlet orifice (34); and a third step (E3) during which the contents of the container (18) are put under a pressure (HP) so as to make the container (18) conform to its final state (18D), characterized in that, during the filling second step (E2), the ratio of the flow rate of the incoming filling liquid (L) to the flow rate of the outgoing blowing gas (G) is controlled so as to allow the container (18) to continue to expand during this second step (E2).