Washing dishes is an activity that needs to be done every day. After all, a regular three meals a day produces a lot of dirty cups, plates and cutlery. Many households use dishwashers instead of hand washing. But which of the two methods is better for the environment and cheaper? Find out here!
Dishwasher versus hand washing: which method is better?
The idea that washing up by hand uses less water and energy than washing up in a dishwasher is an obvious one, but it is not always true. This has been discovered by an initiative of the Federal Ministry for Economic Affairs and Energy (BMWi). Find out here which cleaning method can really reduce your water and electricity costs.
What are the benefits of the dishwasher?
According to the BMWi initiative, when the dishwasher is fully loaded, up to a third less electricity and almost half less water is used compared to washing dishes by hand. A comparative study by the University of Bonn shows even more savings potential: washing dishes by hand consumed an average of 46 liters of water. In contrast, the same amount of dishes could be washed in the dishwasher with only 15 liters of water. Newer models sometimes use even less water.
5 tips for using your dishwasher even more efficiently:
- Fully loadedEvery tenth wash cycle could be saved if the dishwasher was fully loaded every time.
- Avoid pre-rinsing: Modern machines also clean dishes without pre-washing. Rinsing under running water is therefore unnecessary in most cases.
- Select an economical programAn economy or short program is completely sufficient for light soiling and uses less electricity. The Eco program, for example, takes up to four hours, but requires less electricity as the water is only heated to 40 °C.
- Cleaning the dishwasher sieveA clogged strainer prolongs the wash cycle, causing the dishwasher to consume more energy. Therefore, clean it at regular intervals.
- Ensure good conditionsPay attention to the water hardness and dose detergent, salt and rinse aid accordingly.
You may also be interested in these articles:
What are the advantages of hand washing?
Compared to dishwashers, hand washing uses detergents that are less aggressive. Dishwasher tablets contain phosphates, which remove incrustations and burnt-on food, but are harmful to the aquatic environment. When washing up by hand, on the other hand, it is sufficient to soak the dirty dishes or scrub them with a sponge and a little washing-up liquid.
To wash dishes by hand as sparingly as possible, you should always fill the sink with warm water and washing-up liquid instead of cleaning the dirty dishes under running water. Depending on how many dishes need to be washed, it may make sense to change the water in between. Always make sure to wash the dishes that are the least dirty first.
Number check
According to researchers at the University of Bonn, washing dishes by hand consumes an average of between 0.2 and 16 kilowatt hours and 14 to 447 liters of water. The dishwasher uses between 1 and 2 kilowatt hours and 15 to 22 liters of water for the same amount of dishes. This means that in most cases, using a dishwasher costs significantly less water and electricity than washing dishes by hand.
Conclusion
Which method is really cheaper in the end depends above all on the correct behavior of the consumer. If you use and load your dishwasher correctly, you can save more water and electricity when cleaning dirty dishes than someone who washes dishes by hand without any planning. On the other hand, thoughtful washing up by hand can be cheaper than using an incorrectly loaded dishwasher. In addition, washing up by hand avoids the use of aggressive and chemical detergents, which in turn benefits the environment.
Sources: t-online, br, geo
