This expired milk powder can be reprocessed in such way that the dry milk powder will be converted into liquid form in the bulk storage tank. Then the liquid milk will be processed and flash cooled to an appropriate degree Celsius. Heated liquid milk is transferred to the scraped surface heater through evaporator tanks, which helps to drying and this eliminate the extra water. It is then transferred to the spray dryer’s plant. Spray dryer will be forced by very hot air of a high degree Celsius. The high heat evaporates the water and the powder is sprayed out through the nozzles. This step lowers the moisture content from just under half to about 6 percent. The powder is spray dried at the big chambers as more air is blown through it to reach the ideal moisture level i.e. 2 to 4 percent. So the resultant would be a final full cream dry milk powder. This big reprocess is carried out in developed countries like Australia, India and New Zealand and on the top most in USA but under-develop countries are trying to adopt this process.
