A typical dishwasher consumes 10 liters of water for 12 place settings which is little bad for the environment. Are we able to do better? Most definitely, if you are most of the time alone at home. But for a family with children the dishwasher is both economical and almost indispensable.
But there are other ecological considerations in the dishwasher. All work with salt to soften the water and avoid scaling, and also with rinse products. The composition of these is rarely known. One thing is certain though, minute traces of these products remain on the clean dishes. The attention paid by dishwasher manufacturers to water saving is likely to increase this. There again no study on the subject, just common sense considerations.
We do not enter into the details of the other ecological considerations, including the impact of these chemicals on the environment when they are discharged into the sewer, the comparative energy balance between dishwashers and hand washing, and finally the Life cycle of the dishwasher from its purchase to its end-of-life treatment. This article is not meant to denigrate the dishwasher, just to avoid using it when it is possible and beneficial to do otherwise.
Doing the dishes by hand
– Washing the dishes under running water from the best quality kitchen faucet that you can afford will consume up to 50 liters of water! Just like with brushing teeth, consider cutting off the water when you scrub. This may seem obvious, but in practice you will notice that you do not do it, especially if you only have a simple mixer type tap.
– The most efficient technique to save water is to use two tanks , one for washing and one for rinsing. For a small dish, it may not be necessary to fill it, but to pass a little water on each element. Result, the most gifted in the matter consume only 5 to 6 liters for 4 covers.
– How to proceed? You can initially soak your dishes a few minutes in your wash tank. Then, after scrubbing to remove the most resistant residues, use your second basin for rinsing. Cold water can do the trick. Think of changing the water when it starts to foam.
– Wash the utensils as soon as you can when you cook. A pan in which one has just made a sauce is very easily washed under a little hot water. But once cooled and dried, it takes much more water, elbow grease and time.
– The use of hot water is not obligatory for the least fat parts. Because, like dishwashers, the energy used to wash dishes comes mainly from the use of hot water.