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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[–] [S] 1 point 2 weeks ago* (last edited 2 weeks ago) (2 children)

I'm just telling you how I discovered his piece of information. It was a very normal household interaction but with a dash of source amnesia.

edit: I misunderstood how you meant non sequitur. I turned the water cooler to wash my hands because I have soft hands and cannot tolerate the water at full heat.

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  • [–] 4 points 2 weeks ago

    I had a suspicion. Water coming out of pipes is just kinda black magic for many people (not to be negative, irs just not worth learning about). Because the cold and hot water don’t combine until inside the tap, it doesn’t matter for the dishwasher. But pulling hot water out of the tap gets hot water to wherever the dishwasher ties in - in most kitchens, but not always in fancy ones.

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  • [–] 3 points 2 weeks ago

    That won't make a difference. You need to pull the hot water up before you start the dishwasher, but after that you can run the sink with pure cold water and it won't change the dishwasher temp at all. The dishwasher is connect to the hot water pipe directly

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