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Old 07-06-2013, 08:59 AM   #1
seasnan
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Default Rainwater

It seems like it's been raining every day this summer here in VT. I'm thinking I may put it all to good use. Can anyone think of a reason not to use fresh rainwater for brewing?

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Old 07-06-2013, 10:25 AM   #2
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Can you do a "clean catch" for a sufficient amount of water? I wouldn't use anything that touched/ran off of/ bounced off an unclean surface.

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Old 07-06-2013, 03:10 PM   #3
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Asphalt shingles, acid rain, airborne environmental pollutants, catch-basin contaminants and bacteria, ... Plenty of reasons not to do this.

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Old 07-07-2013, 01:46 AM   #4
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I work in a hospital so I have access to sterile drapes that I was planning to use to make a large, sterile catch basin in a large field to prevent run off. Also, I'm in Vermont so there isn't a lot of environmental hazards or acid rain to worry about, but, just in case, who would I contact to find out about rain water quality? Wouldn't any bacteria or contaminants be neutralized during the boiling of the wort?

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Old 07-07-2013, 02:29 AM   #5
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Quote:
Originally Posted by seasnan View Post
I have access to sterile drapes that I was planning to use to make a large, sterile catch basin in a large field to prevent run off.
Bird poop.
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Old 07-07-2013, 02:34 AM   #6
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send it to Ward labs for a test. they could give ya the info u'd need.

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Old 07-07-2013, 03:34 AM   #7
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Quote:
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Bird poop.
LOL!!! I forgot that one.
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Old 07-07-2013, 03:45 AM   #8
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I think you should do it. If you are using it for brewing, well you will be boiling the water anyways, so no worries of contamination bacteria wise at least. All the other crap? Well, if you drink water from a city, it's probably worse than rainwater IMHO. Go for it!

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Old 07-07-2013, 03:53 AM   #9
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Isn't rainwater pretty soft? You may need to add salts to build a water profile sufficient for mashing.

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Old 07-07-2013, 04:38 AM   #10
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According to new brewing lager beers, rainwater is loaded with air based contaminants, and is not suitable for brewing.

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