<；P>；PROBLEM TO BE SOLVED: To provide a disinfection method for solving various problems of disinfection and a washer capable of executing the disinfection method in washing by a continuous washer. <；P>；SOLUTION: This continuous washer 11 has a pre-washing tub, a regular washing tub, a rinsing tub, and a finishing tub, a chlorine-based solution and acidic solution are supplied to the rinsing tub or the finishing tub, a pH value is monitored in a tub one before the tub where the chlorine-based solution and acidic solution are supplied, or the tub supplied therewith, and the acidic solution is additionally supplied thereto so that the pH value of the rinsing tub reaches a target value and thereby, objects to be washed, the washer body, and related peripheral devices are disinfected. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
