"Pure" water stops existing as soon as you remove it from your sealed glasswork in the lab, if you want to be that pedantic. decently good commerical Reverse Osmosis filters will get water to under 20ppm total dissolved solids, so basically you're drinking 99.998% water*. Dutch tapwater is at worst 99.97% pure water, or 350ppm TDS in more jargon terms.

And you can drink that just fine, because (and this might shock you) water has basically no nutritional value. What mechanism are you suggesting that makes "pure" 99.998% water so dangerous compared to "impure" 99.97% water?

*not counting dissolved gasses (Radon, h2s), volatile liquids (benzene) or some medication (like some hormones and antibiotics), but those aren't exactly desirable or nutritionally important.

[–] Railcar8095@lemmy.world 0 points 11 hours ago

I don't want to be pedantic, I want to call things by it's name. Filtered water is not pure water and they aren't checking if glass A has more plastics than B.