Method for cleaning and/ or evaluating a food products mould drum and a combination of such a food products mould drum and a mould drum cleaning and/ or evaluating device

A method for cleaning a food products mould drum having an outer drum surface provided with multiple recessed mould cavities, each mould cavity with a mould cavity wall formed at least in part by a wall part with a porous structure, the mould drum further being provided with one or more passage ports, which are via one or more passages and via the wall part porous structures in fluid communication with the mould cavities;

• which mould drum has been become soiled in a process of moulding three-dimensional products from a mass of one or more food starting materials, said process involving rotating the mould drum and feeding the mass to the mould cavities and ejecting formed food products from said mould drum;
• the method comprising the steps of:
• arranging one or more housings against the outside of and over one or more mould cavities, so as to form together with the mould drum an outside chamber, the outside chamber having a radiation source;
• and
• cleaning the at least one mould cavity in a first phase by exposing the at least one mould cavity to radiation by means of said radiation source.