eli5: Why can’t you drink Demineralised Water?

1.27K viewsChemistryOther

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

Because it’s not “potable”, or rated for human consumption, like cat food.
Demineralised water is mineral deficient, we need minerals. It’s also better at leeching contaminants from the material it’s, usually plastic, container is made out of. If it’s been stored for years in a bottle that may not have been sterilised correctly there’s a chance something may have grown and died in there. Doesn’t taste so good either.

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