| abstract |
[PROBLEMS] To bring out detergency by causing an acid to act on siliceous material on the surface of tableware and dirt such as protein, lipid, and sugar. A cleaning container 70 for storing objects to be cleaned such as tableware, a water supply device 75 for supplying water to the cleaning container 70, a cleaning means 74 for discharging a cleaning liquid into the cleaning container 70, and the cleaning container. An electrolytic cell 77 for supplying acid to 70 is provided, and acid cleaning is performed before cleaning with a detergent solution. [Selection] Figure 6 |