A tilting method for rotating moulds provided with cavities containing food products, in particular chocolate products, to be unmoulded; said cavities being made at an external surface of each mould; the method comprising the steps of: - transferring said moulds in a row along a path; - tilting each mould by 180° with respect to a fixed external reference system, about a rotation axis orthogonal to said path, by means of a tilting assembly; wherein said external surface is covered by a retention surface during the tilting step; characterized in that - each mould is transferred along said path by the thrust of a respective pair of pins, which are coaxial with each other along a centreline axis of said mould; - each mould is rotatable with respect to the corresponding pins about its centreline axis; - said tilting assembly is movable along a longitudinal straight branch of said path with a reciprocating motion, comprising a forward stroke and a return stroke; - before the tilting step, the method comprises an alignment step wherein the tilting assembly translates along said forward stroke so as to make said rotation axis coincide with said centreline axis; - the tilting step is carried out while said mould is transferred by said pair of pins along said longitudinal straight branch, and while said tilting assembly translates along said forward stroke in synchronism with said pins, to keep said rotation axis and centreline axis coincident; - after the tilting step, the tilting assembly translates along said return stroke. - transferring said moulds in a row along a path; - tilting each mould by 180° with respect to a fixed external reference system, about a rotation axis orthogonal to said path, by means of a tilting assembly; wherein said external surface is covered by a retention surface during the tilting step; characterized in that - each mould is transferred along said path by the thrust of a respective pair of pins, which are coaxial with each other along a centreline axis of said mould; - each mould is rotatable with respect to the corresponding pins about its centreline axis; - said tilting assembly is movable along a longitudinal straight branch of said path with a reciprocating motion, comprising a forward stroke and a return stroke; - before the tilting step, the method comprises an alignment step wherein the tilting assembly translates along said forward stroke so as to make said rotation axis coincide with said centreline axis; - the tilting step is carried out while said mould is transferred by said pair of pins along said longitudinal straight branch, and while said tilting assembly translates along said forward stroke in synchronism with said pins, to keep said rotation axis and centreline axis coincident; - after the tilting step, the tilting assembly translates along said return stroke. - each mould is transferred along said path by the thrust of a respective pair of pins, which are coaxial with each other along a centreline axis of said mould; - each mould is rotatable with respect to the corresponding pins about its centreline axis; - said tilting assembly is movable along a longitudinal straight branch of said path with a reciprocating motion, comprising a forward stroke and a return stroke; - before the tilting step, the method comprises an alignment step wherein the tilting assembly translates along said forward stroke so as to make said rotation axis coincide with said centreline axis; - the tilting step is carried out while said mould is transferred by said pair of pins along said longitudinal straight branch, and while said tilting assembly translates along said forward stroke in synchronism with said pins, to keep said rotation axis and centreline axis coincident; - after the tilting step, the tilting assembly translates along said return stroke.