How do modern dishwashers take way longer to run and clean better yet use less energy and water?
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This may get buried but I had a professor who focused on sustainability and did a study on this exact topic. She found the major reason was that when people did dishes they let the water run the whole time.
When they had people turn the sink off, soap everything up, then turn it back on to rinse off the soap. Or turn it off and on between each use, the sink was either the same or a little more efficient than the dishwasher.
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