A temperature treatment apparatus for solidifying portions of fluid, the apparatus comprising: an endless product conveyor belt comprising a plurality of moulds made of elastic material, each of the plurality of moulds having an open end, through which a fluid is dispensed, and a bottom, each of the plurality of moulds being arranged to convey a portion of fluid during solidifying of the same, a shaft (12, 13) about which the endless product conveyor belt is arranged to travel and wherein the shaft (12, 13) is arranged to bear against the mould for ejecting the at least partially solidified portions from the plurality of moulds, the apparatus being characterized by a first impingement temperature treatment device arranged in a first temperature treatment zone, a second impingement temperature treatment device arranged in a second temperature treatment zone, wherein the first temperature treatment zone is arranged upstream the second temperature treatment zone with regard to a direction of movement of the portions of fluid during use of the apparatus, wherein the first temperature treatment zone is arranged to solidify a crust on the portions of fluid at least on a surface of the fluid closest to the open end of the moulds when the moulds comprising portions of fluid are conveyed through the first temperature treatment zone, and wherein the second temperature treatment zone is arranged to further solidify each portion of fluid such that at least partly solidified portions are formed when the moulds comprising portions of fluid are conveyed through the second temperature treatment zone, and wherein each of the plurality of moulds is arranged to deform when contacted by the shaft (12, 13), whereby the at least partially solidified portions are ejected from the plurality of moulds. an endless product conveyor belt comprising a plurality of moulds made of elastic material, each of the plurality of moulds having an open end, through which a fluid is dispensed, and a bottom, each of the plurality of moulds being arranged to convey a portion of fluid during solidifying of the same, a shaft (12, 13) about which the endless product conveyor belt is arranged to travel and wherein the shaft (12, 13) is arranged to bear against the mould for ejecting the at least partially solidified portions from the plurality of moulds, the apparatus being characterized by a first impingement temperature treatment device arranged in a first temperature treatment zone, a second impingement temperature treatment device arranged in a second temperature treatment zone, wherein the first temperature treatment zone is arranged upstream the second temperature treatment zone with regard to a direction of movement of the portions of fluid during use of the apparatus, wherein the first temperature treatment zone is arranged to solidify a crust on the portions of fluid at least on a surface of the fluid closest to the open end of the moulds when the moulds comprising portions of fluid are conveyed through the first temperature treatment zone, and wherein the second temperature treatment zone is arranged to further solidify each portion of fluid such that at least partly solidified portions are formed when the moulds comprising portions of fluid are conveyed through the second temperature treatment zone, and wherein each of the plurality of moulds is arranged to deform when contacted by the shaft (12, 13), whereby the at least partially solidified portions are ejected from the plurality of moulds.