UHPH systemwas sterilized by means of vapor at 140 °C for 50 min in all circuit process prior to treatment. After soymilk processing, the equipment was cleaned by using silicate alkaline detergent solution at 70 °C for 30 min followed by nitric acid solution at 45–50 °C for 20 min only through the heat exchangers. Finally the same disinfecting solution of UHT procedure was applied