Eli5: Why is the eco program on my washing machine longer than the regular program?

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My washing machine has an ‘eco’ setting, which makes the machine program take about an hour longer than without the setting. Why is this the case, and how much difference does it make? I would think that longer operation would amount to both more water and power usage but the machine itself claims otherwise.
Also, does it matter more or less for higher machine temperatures?

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4 Answers

Anonymous 0 Comments

Say you’re driving from A to B. You could charge there at 90mph, you’d get there very quickly but you’d use a lot of fuel in the process.

Or you could putter along at 45, it would take twice as long but would use a lot less fuel.

It’s the same with your washing machine, and even your dishwasher. The eco cycle might take longer, but it’s not using as much power overall – it’s just taking its time, probably by washing more thoroughly but at a lower temperature.

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