A foaming method and apparatus for products comprising



a frame (T) on which a first containment jig mould (1) is supported,
at least one foaming unit, and
a loading trolley (20) provided with a controlled conveyor (21) for transferring said components from an inlet line (Li) inside said containment jig (1), wherein it includes
at least a second containment jig (10) arranged above said first containment jig (1) constrained to the same fixed frame (T),
a removal trolley (30) arranged on the side opposite said loading trolley (20) with respect to said containment jigs (1, 10), between said containment jigs (1, 10) and an outlet line (Lu), wherein
said loading trolley (20) and removal trolley (30) are vertically movable, by means of respective controlled lifts (22, 32), between a lower position and one or more service positions in which they are arranged adjacent to said jigs (1, 10).