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Product Help | KitchenAid

Why is Using Distilled Water in a Coffee Maker Not Recommended?

Why to Not Use Distilled Water in KitchenAid Coffee Makers

KitchenAid® does not recommend distilled water because of issues with the flow rate through the coffee grounds.  Because distilled water is such a good solvent, it causes the coffee grounds to swell, and slow the flow of water. This leads to bitter, over-extracted coffee or possible brew basket overflow. It is even worse with de-caffeinated coffee. Distilled water also causes the metal brewing element to slowly deteriorate the hot water tube, causing premature failure of the coffee-maker.


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