Except the standard soap machines, it needs one set of 2 ton/hr steam boiler, 300 m3 workshop, 10-12 workers, electric power 380 V, 200 kW. Soap Production from Soap Noodles. Soap noodle is a semi-product, and it is also made from oil and caustic soda. Some soap factories use soap noodle as a start off material for producing soaps.