27 Jul '17, 6am
Bosch FAQ: Common Questions about a Dishwasher
Manual washing is usually done with cold water whereas a dishwasher uses hot water to wash the dishes; this helps to kill harmful germs during the washing cycle. The dishes come out dry which means that there is no need for drying them manually afterwards or leaving them out for drying (which reduces dust accumulation on the dishes). The sponge used in the manual wash accumulates and breeds germs, which is not hygienic.