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this post was submitted on 17 Jul 2024
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Asklemmy
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Filters are usually made out of plastic :)
There's a difference between high quality plastic performing filtration while it's cold plastic and cold water vs crap plastic that's regularly exposed to high temperatures during transport and storage with the same water contained the entire time.
Maybe, I'm no expert. But, I've seen a test showing a consumer water filter increasing microplastics by 1000%. Could just be only that specific filter or filter type. I believe it was a Zero filter, which I think uses resin beads for ion exchange.
Interesting, I used ZeroWater for a while ... and know others that do. But yeah, searching around it seems it's only ConsumerLabs.com that came up with that result and all other filters were removing (at least some percentage of) microplastics.
I'm not sure how much I trust that ConsumerLabs.com test: https://www.consumerlab.com/methods/water-filters-review/water-filters/
Repeatability isn't really established by testing one device, one time. I'm not an expert either, but that result seems quite surprising.
I have a reverse osmosis system now personally...