this post was submitted on 28 Oct 2025
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Coffee
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For a couple hundred $/Euros, a 7 stage undersink reverse osmosis filter system with final stage remineralization is more than good enough for most folks. Gives very low TDS (total dissolved solids) and removes all odd flavors from the water. The three main large particle filters need to be changed about once year and cost very little. Works very well for my drinking water and coffee here in Vietnam.