Today, I washed my hands at the kitchen sink while making lunch, and was unexpectedly chastised by my partner because she had just started the dishwasher. Apparently, she has recently come across something that has convinced her that running the hot water in your sink means the water that enters your dishwasher will be hotter (checks out), and thus the dishes will be cleaner. I tried searching startpage to see if this is real, but I couldn't make it through even one llm-slop-ticle about it before my eyes rolled back into my head, so here I am asking y'all: chat, is this real? Doesn't my dishwasher have a heating element? Is there any meaningful difference between heating the water with a hot water heater vs a dishwasher, other than I can't use my sink while the dishwasher is filling and I have to pour a bunch of cool water down the drain?

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[–] 4 points 1 month ago

So everyone else is talking about how yes, it is generally better (at least in the US). But what I think is missing is that once the hot water is there, there’s no reason to not use cooler water at the sink. The dishwasher isn’t pulling its water from the sink, but if the hot water makes it to the sink then it’ll make it to the dishwasher more effectively.

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