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Old 09-07-2013, 10:33 AM   #1
Jan 2010
Last Station
Posts: 667
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Hi there !

Is there any disadvantages by using Deionized water instead of distilled water for brewing ?


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Old 09-07-2013, 01:02 PM   #2
mabrungard's Avatar
Feb 2011
Carmel, IN
Posts: 4,165
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They are essentially the same thing. Their difference is the technique used to create each one. Both should have no ionic content.

Since we do want a modest level of certain ions in our brewing water, using either of these waters is overkill in comparison to RO water. RO water has very low levels of ions and may be less costly than distilled or DI water.
Martin B
Carmel, IN
BJCP National
Foam Blowers of Indiana (FBI)

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Old 09-07-2013, 01:17 PM   #3
Aug 2010
McLean/Ogden, Virginia/Quebec
Posts: 9,194
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Deionized simply means that the ions have been removed. There are two ways to do this: distillation and ion exchange. Thus DI includes distilled and distilled is one kind of DI.

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