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Home Brew Forums > Home Brewing Beer > General Techniques > Brewing with tap water -- from the HOT faucet
View Poll Results: Should you brew with tap water from the HOT faucet?
Sure, why not! 142 43.96%
Never! 121 37.46%
Welllllllll, that depends.... 60 18.58%
Voters: 323. You may not vote on this poll

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Old 11-28-2008, 05:53 PM   #1
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Default Brewing with tap water -- from the HOT faucet

Chime in with your opinion and your thoughts: should you brew with hot tap water or not? It's tempting since you can shave some time heating your mash and sparge water up to temp, but I know some will cringe at the thought of lead contamination or something.


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Old 11-28-2008, 06:15 PM   #2
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You shouldn't drink water from the hot water tank. It can have all kinds of nasty bacteria and chemicals and whatnot.


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Old 11-28-2008, 06:15 PM   #3
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Don't use hot tap water if you use a carbon filter. And you should filter tap water if it has chlorine so....don't use hot tap water.
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Old 11-28-2008, 06:33 PM   #4
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I don't. I've always heard that sediment collects in the hot water heater from the element etc..

Could be propaganda but I don't take the chance..
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Old 11-28-2008, 06:37 PM   #5
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I do, BUT I have very pure water, a new heater and PEX piping.
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Old 11-28-2008, 06:41 PM   #6
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Quote:
Originally Posted by planenut View Post
I don't. I've always heard that sediment collects in the hot water heater from the element etc..

Could be propaganda but I don't take the chance..
Same pricipal as boiling water to have the hardness precipitate out. Minerals and metals in the water will collect because of the heating element, making the water from all but the newest water heaters contain high levels of minerals, making a much harder water profile from the hot faucet.

Also, as King said, you want to carbon filter your tap water for chlorine and chloramines, and you can't run hot water through carbon filters.
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Old 11-28-2008, 08:40 PM   #7
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I have a well and a water softener. I get my brewing water from the outside spigot. It is hard and cold. No chlorine, and no iron.
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Old 11-28-2008, 09:02 PM   #8
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Actually, you can remove chlorine or chloramine from your water with campden tablets. I think the need to filter would only be true if you had other things in your water that you wanted to remove.
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Old 11-28-2008, 09:33 PM   #9
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I do it all the time with no problems. I'm not worried about the minerals and such of the hot water heater after it has already traveled miles in pipes to get there.

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Old 11-28-2008, 09:41 PM   #10
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I voted never, but that is based on my situation.

Extremely hard water in this area. So hard it eats the anode rods in water heaters within a year or two and gives an odd smell to the water of sulfur. Common practice by plumbers to remove rod whenever possible and run without. Add to that the minerals collected in the hot water heater from the heating process in a hard water environment and that's two strikes.

Since the well water is so hard, we have a water softener. This is hooked up to my hot and cold water except I have a non-softened cold run to the kitchen sink and my brew sink. Brewing with hot softened (salted) water doesn't sound like a great idea to me.

So I use cold and never hot. YMMV but I find that my cold (58*F) water warms up within 10 minutes on the burner.


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