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by chriswrites 1755 days ago
Definitely not distilled. Most of the best coffee cities around the world have tap water with dissolved solids around 150ppm. If you’re in a place like mine in Phoenix, the tap water is like 500+ppm, so we use RO and demineralize with something like Third Wave Water (or you can make your own for cheap). It’s super fussy, but the taste difference is real.