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Old 04-05-2011, 05:27 PM   #1
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Default Dumb Question Re: RO Water

OK here's a dumb question but I've been wondering about this for a while now:

Everyone talks about using "RO" water - which I assume is "Reverse Osmosis" water. I can buy jugs of spring water, filtered water and distilled water, but I can't find anything that labled as "Reverse Osmosis" water. Where do you folks get this stuff?

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Old 04-05-2011, 05:29 PM   #2
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Usually, people using "RO" water have a RO to make it...

Personally, I have a dual stage filter system (under my sink) that I use for my brew water (as well as cooking and drinking water).

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Old 04-05-2011, 05:33 PM   #3
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grocery store

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Old 04-05-2011, 05:36 PM   #4
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Aquarium stores will often sell RO water and/or RO filters.

Brian

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Old 04-05-2011, 05:39 PM   #5
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Why do you want RO water? RO is very similar to distilled water in that most, if not all of the minerals have been removed. The minerals are extremely important for mash health and need to be added back when using distilled or RO water. The advantage to starting with RO or distilled is that you can add minerals to achieve any water profile you want. If you really want to get into water chemistry and creating style specific water profiles then go for it. Otherwise just buy the spring water which already contains the minerals needed for a healthy mash.

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Old 04-05-2011, 05:58 PM   #6
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Yea same thing as distilled pretty much, just a different process. I buy whatever is cheaper.

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Old 04-05-2011, 06:03 PM   #7
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I like the cost of the water from my system... Counting the filter cost, since I've had the housing for 10 years now) it comes out to $0.04 per gallon. Water is nice and clean tasting (tap water smells of chlorine to me) and I could drink it all day long (if I wanted to)... I actually like it better than bottled water. Plus, I'm getting great brew with it. That's what's really important IMO...

The filters in my setup remove about 99% of the things you don't want in your drinking water... That includes all the harmful items. The second stage is a .5 micron filter, so nasty things are left behind...

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Old 04-05-2011, 06:05 PM   #8
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Quote:
Originally Posted by JonK331 View Post
Why do you want RO water? RO is very similar to distilled water in that most, if not all of the minerals have been removed. The minerals are extremely important for mash health and need to be added back when using distilled or RO water. The advantage to starting with RO or distilled is that you can add minerals to achieve any water profile you want. If you really want to get into water chemistry and creating style specific water profiles then go for it. Otherwise just buy the spring water which already contains the minerals needed for a healthy mash.
with spring water you have no idea what you're getting. they list very broad ranges of mineral content.

look at ice mountain's report:
Calcium: 1.6 - 59
Mag: 0.67 - 20
Biocarbonate: <1.0-190
pH: 5.07-8.3

its my random opinion that its usually at the lower end of these ranges. My darker beers always seemed to have an acidic bite when I used to brew with pure spring water.
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Old 04-05-2011, 06:32 PM   #9
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Quote:
Originally Posted by JonK331 View Post
Why do you want RO water? RO is very similar to distilled water in that most, if not all of the minerals have been removed. The minerals are extremely important for mash health and need to be added back when using distilled or RO water. The advantage to starting with RO or distilled is that you can add minerals to achieve any water profile you want. If you really want to get into water chemistry and creating style specific water profiles then go for it. Otherwise just buy the spring water which already contains the minerals needed for a healthy mash.
The fact is that I don't want it. I've just seen it mentioned so often that I wondered where/how people got it.

I've been using bottled Poland Springs water for my brews and have been OK until recently when I decided to brew a dark mild. According to Bru'n Water, even at their max amounts in the ranges given in the water analysis, there's not enough bicarbonate and other stuff to have the mash come out with the right ph range. That's prompted me to be more interested in water chemistry in general.
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Old 04-05-2011, 06:40 PM   #10
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I just picked up one of these and couldn't be happier. I also added a T to it along with a line and a valve so I can fill my carboys with RO water for brewing. Made a huge difference in the quality of my drinking water - can't believe I didn't get one of these sooner after paying $.50/gallon for RO water.

http://www.bulkreefsupply.com/store/...er-system.html

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