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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 1 year ago by 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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[–] 5 points 1 year ago (1 child)

If you have a high pressure hot water system, then the heater doesn't touch what comes out of the tap. In those you have a closed system from the heating to a tank. That tank contains fresh water, but the heating loop only interacts with it via a heat exchanger.

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