Title of Invention PROCESS FOR PREPARING FROZEN CONFECTIONERY PRODUCTS
A process for producing frozen confectionery products, the process comprising: providing a source of a frozen confection to a chamber of a nozzle, the nozzle comprising an extrusion plate, wherein the extrusion plate defines one or more apertures in fluid communication with the chamber; wherein the apertures have a width of from 1 to 5 mm and a length of at least 10 mm; a first extrusion step of extruding the frozen confection from the chamber of the nozzle through the apertures of the extrusion plate, to produce extruded frozen confection having a direction of extrusion relative to the extrusion plate, the extrusion being carried out whilst the nozzle has a direction of movement having a component of movement in a direction parallel to the direction of extrusion wherein the component of movement is zero or in the same direction as the direction of extrusion; and followed by a second extrusion step of moving the nozzle with a direction of movement having a component of movement in a direction parallel to the direction of extrusion wherein the component of movement is in the opposite direction to the direction of extrusion is provided.
1 . A process for producing frozen confectionery products, the process comprising:
providing a source of a frozen confection to a chamber of a nozzle, the nozzle comprising an extrusion plate, wherein the extrusion plate defines one or more apertures in fluid communication with the chamber; wherein the apertures have a width of from 1 to 5 mm and a length of at least 10 mm;
a first extrusion step of extruding the frozen confection from the chamber of the nozzle through the apertures of the extrusion plate, to produce extruded frozen confection having a direction of extrusion relative to the extrusion plate, the extrusion being carried out whilst the nozzle has a direction of movement having a component of movement in a direction parallel to the direction of extrusion wherein the component of movement is zero or in the same direction as the direction of extrusion; and
followed by a second extrusion step of moving the nozzle with a direction of movement having a component of movement in a direction parallel to the direction of extrusion wherein the component of movement is in the opposite direction to the direction of extrusion.
2 . A process according to claim 1 , wherein the source of frozen confection is stopped before or during the second extrusion step,
3 . A process according to claim 2 , wherein the source of frozen confection is stopped during the second extrusion step.
4 . A process according to claim 1 , wherein the speed of the nozzle is increased during the second step.
5 . A process according to claim 1 , wherein the apertures have a width of from 2 to 4 mm, such as about 3 mm.
6 . A process according to claim 1 , wherein the apertures are arcuate, and preferably are arranged concentrically around a central point in the extrusion plate.
7 . A process according to claim 1 , wherein the frozen confection is extruded into a receptacle, such as a cup, tub or cone.
8 . A process according to claim 1 , wherein a gas, preferably air, is forced from further openings located between the apertures of the extrusion plate.
9 . A process according to claim 1 , wherein the frozen confection is extruded at a temperature of −5° C. or below.
10 . A process according to preceding claim 1 , wherein the speed of the nozzle when moving is in the range of from 0.5 to 3 m/s.