H2O - dihydrogen oxide, hydrogen hydroxide. Comprises over 90% of most beers. Termed "liquor" when used in the brewing process.

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How can I put minerals back into distilled or reverse osmosis water?

The tap water where I live is filled with chlorine, flouride, some pretty bad elements such as arsenic, chromium, barium, etc. So I would like to purify my water with either reverse osmosis or ...
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What are the various ways to remove chlorine/chloramine from tap water?

OK, I actually know how to remove chlorine, but I'd like to have the pros and cons of each method spelled out. I will post an answer and mark it as a community wiki. Please edit it with your input.
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What effects will the type of water have on beer?

For instance, will hard water really change the taste that much?
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Could someone provide info. about brewing salts?

I have been reading a lot about home brewing. I'm planning actually to build an electronic 5 gallon brewery. Could anyone provide a short explanation when (mashing, boiling ?!), why and how much to ...
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What Calcium ppm is required in the mash for alpha-amylase stability and mash efficiency?

I recently moved and my water here is quite soft with a very low pH. As such, I've taken to adding many of my brewing salts in the brew kettle and only using salts in the mash to balance the pH. ...
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Amount of Water to Boil for Wort

If I'm making a 5 gallon batch of beer, how much water should I use for my wort? Papazian's book says to use 1.5g and add it to 3.5g of room temperature water already in the carboy. I see how this ...
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Can I top off my batch at bottling time with water?

I noticed my batch in the secondary looks short of 5 gallons, can I top it off with water when I bottle?
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Should I test my water?

A buddy and I have brewed a few batches of beer and they tend to have similar flavors when we're done. Could this be attributed to the water? What are some tests you would recommend doing to ensure ...
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How do water filters effect the minerals in water?

In the particular section of the city I live in, the tap water has a poor taste. I use a Pur brand water filter which improves the taste significantly (although it is still poor relative to bottled ...