Co-extruded filled snacks incorporate centre fillings within a cereal outer. The ability to control three key aspects of the process – texture, filling and shape – creates the freedom to develop a wide variety of added-value extruded snacks.
Fillings can be of virtually any colour or flavour – sweet and savoury creams, fruit pastes, cheese and chocolate praline are typical. Exotic flavours, plus glazings, frostings or chocolate coating, add even more appeal. The outer shell can appear to be plain or stringy, with surface textures such as grooves and highlights.
As well as basic two-dimensional pillows the product stream can be cut, without creating scrap, into appealing shapes such as chevrons, fish and faces. Sticks, tubes and bars can also all be made.