Originally Posted by TheCrackpot
What is the problem with using distilled water? I've never heard this before. I thought the less mineral in the water the more effective and stable the Star San is.
It is claimed that Star San will last for a very long time, practically forever in distilled water, so using distilled water should be fine. I have read that some people experience less foaming when using Star San and distilled water which may be an issue. The foam allows star san to more effectively penetrate an area. I have not used Star San with distilled water myself, so I cannot comment.
Personally, I just use my tap water, or RO water. Even if my tap water solution becomes cloudy, the prouct is still effective for me.