Basically, washing dishes by hand can save up to 70 percent in energy, detergent and overall costs, with about the same water consumption as using a dishwasher.
Efficient hand rinsing
With manual rinsing, however, an efficient and economical rinsing method is assumed. The individual habits and requirements of each person, such as the amount of dishes to be cleaned, whether the dishes are washed with or without rinsing and water changes, or the length of the pipework, can significantly increase the consumption values.
It can therefore be cheaper for many households to use the dishwasher – especially if the so-called economy program is used. These programs consume up to 10 percent less energy because they are run at a low temperature or without the pre-wash cycle, which can save up to 5 euros a year.