alt Hacker NewsCeramic filters are very common in Brazil, used in clay recipients which also keep the water cool even in summer without spending energy.
https://g1.globo.com/saude/noticia/2026/03/14/filtro-de-barr...
Replies
weinzierl • yesterday at 10:47 PM
This and the low-tech electrical shower-head are the two everyday Brazilian things that never cease to amaze me.
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Mostly in rural regions, but the 'filtro de barro' water from your grandma's house beats ANY expensive filter you can get, haha!