Method for providing an aerosol-generating device, aerosol-generating device and flat aerosol-generating article for use in such a device

An aerosol-generating device comprising a device housing comprising a moulding cavity for receiving a solid tobacco containing aerosol-forming substrate,

• the moulding cavity at least partially corresponds to a moulding space between a first and a second mould half of a mould, the first mould half and the second mould half being internal surfaces of the device housing,
• wherein in an open state of the mould corresponding to an open device housing, the aerosol-generating device is adapted to receive a flat aerosol-forming substrate in between the first and second mould halves,
• wherein in a closed state of the mould corresponding to a closed device housing, the moulding space in between the first and second mould halves has a non-flat shape,
• wherein the first and second mould halves are adapted to transform a flat aerosol-forming substrate supplied between the first and second mould halves into a non-flat aerosol-forming substrate having a shape corresponding to the non-flat moulding space in the mould upon closing of the mould.