Noodles can be made from a range of flours including rice, wheat, maize and potato. The dough can be processed in one of two ways- either rolled out into thin sheets of dough and cut into strands or extruded using a machine. The strands are then steamed and may either be eaten fresh or further processed by drying. Drying can be carried out in a solar dryer or a fuel-fired dryer. The noodles can be dried in the sun, but the quality will be lower than if a dryer is used. Dried noodles should be packaged in a moisture-proof packaging such as polythene and in an outer carton or box to prevent crushing.