| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for washing and sterilizing a device for treating a liquid food to remove the residues of the liquid food and the like adhered to the device at a low cost, using washing water which has an excellent washing property and an excellent sterilizing action, does not cause a problem on environments even when drained as waste water, and does not deteriorate the delicate flavor of the liquid food after washed, and not requiring a maintenance treatment such as the exchange of batteries. SOLUTION: This method for washing and sterilizing a device for treating a liquid food comprises flowing a washing liquid through the device for treating the liquid food. Therein, the washing water is electrically treated water obtained by applying an AC electric voltage to parallel set electrodes and flowing the water between the electrodes. It is preferable to apply to the electrodes an electricity which has AC rectangular waves having a frequency of 0.1-30 Hz and an electric voltage of 0.1-100 V. It is further preferable to add an electrolyte to the water to increase the sterilization effect, when the AC voltage is applied.
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