eli5: Why can’t you drink Demineralised Water?

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At my local hardware store they sell something called “Demineralised Water High Purity” and on the back of the packaging it says something like, “If consumed, rinse out mouth immediately with clean water.”

Why is it dangerous if it’s cleaner water?

In: Chemistry

19 Answers

Anonymous 0 Comments

Demineralised water is different from distilled water. Two big differences are (1) demineralised water is not treated for bacteria/viruses because it’s not intended for drinking, and (2) drinking demineralised water will actually leech minerals like calcium out of your body. Even pure water has trace minerals, which are essential for our bodies, whereas they are not present in demineralised water. Distilled water is fine to drink, although spring/tap water is best.

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