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Product Help | KitchenAid

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

Why Distilled Water should not use in KitchenAid Coffee Makers

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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 slows the flow of water.  This leads to bitter, over-extracted coffee or possible brew basket overflow.  It is even worse with decaffeinated 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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