A kind of device for molded food product mass body, comprising: one or more molds (14) have socket (16), and which defines casting chambers The correlation that insertion piece (22) is made from a material that be thermally conductive, the relationship of heat exchange utilize casting chamber (16) Andthermal-conditioning units (24), such as Peltier unit are associated with (2) that insertion piece is made from a material that be thermally conductive.There is a control unit (34), material is carried out selectively to make a reservation for casting to provide cycle heat treatment for conditioning unit (24) for generating signal.Preferred application is sector confectionery industry.