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TIL why you're not supposed to cook or drink hot tap water - it's the lead (and other heavy metals) (www.epa.gov)
submitted 2 weeks ago by pelespirit@sh.itjust.works to c/til@lemmy.ca
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Hot water dissolves lead more quickly than cold water and is therefore more likely to contain greater amounts of lead. Never use water from the hot water tap for drinking, cooking, or making baby formula.

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[-] pelespirit@sh.itjust.works 10 points 2 weeks ago

I think it's negligible compared to ingesting. I think most dishwashers do a final cold rinse, yeah? I could be wrong on that though.

[-] Bishma@discuss.tchncs.de 12 points 2 weeks ago

I've never seen a dishwasher with 2 supply lines, they usually only hooked to hot.

[-] curbstickle@anarchist.nexus 13 points 2 weeks ago

Or cold with an internal heater, but still a single supply line.

[-] pelespirit@sh.itjust.works 5 points 2 weeks ago

We need that dishwasher guy to look into all of this.

[-] beetus@lemmy.world 10 points 2 weeks ago* (last edited 2 weeks ago)

He did already and that's why we know most dishwashers (in the US) are fed by one line coming from the hot water tap.

[-] pelespirit@sh.itjust.works 1 points 2 weeks ago

I mean about the hot water having lead and other heavy metals part.

[-] HuntressHimbo@lemmy.zip 9 points 2 weeks ago

The steam that comes out of dishwashers I've used after washing would seem to indicate otherwise. Wouldn't that temperature shock be dangerous to the ceramics?

this post was submitted on 10 Nov 2025
167 points (100.0% liked)

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