Therefore, the microbial inactivation achieved by UHPH treatment is strongly dependent of inlet temperature and microbial initial load of unprocessed sample. Inlet temperature of soymilk combined with high pressure, in this case 80 °C and 300 MPa, caused an increase of temperature in the homogenization valve (144 °C). It is important to note that the holding
timeat this high temperaturewas about 0.7 s, before the cooling system decreases the UHPH soymilk temperature to 28 °C.