System for the heating and extraction of food products in automatic dispensing machines, for use in automatic dispensing machines for food products conserved on cold trays until their consumption and which also have means of heating the products based on a microwave oven, in such a manner that the system comprises means of handling the products in their heating and extraction phase, said means of handling being connected by a hatch (7) with a cubicle (4) for the housing of some storage trays (5) for the products.