Creating custom mineralized water by adding measured amounts of minerals (magnesium via Epsom salt, bicarbonate via baking soda) to distilled water is possible and allows for precise composition control for optimal coffee brewing.

factualpending

Speaker

James Hoffmann

Evidence Quote

you can get a bunch of distilled water and go and buy your individual components for the mineral content you can use magnesium in the form of Epsom salt that's cheap and easier to get hold of and for the bicarbonate you can just use sodium bicarbonate which is baking soda which is incredibly cheap and easy to get hold of

Source

The Best Water for Coffee - An IntroductionJames Hoffmann
Created: 8/13/2026, 9:49:47 AM

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