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  #21  
Old 04-15-2012, 10:00 PM
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That's cool. We're getting ready to do that to a bunch of concrete walls to see where the rebar is.

Every time I'm in a doctor's office and they leave me alone, I start playing with stuff in the exam room just to annoy them. I can just see you going in for a check up and saying, "um, yeah, I need to bring this box in with me."
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  #22  
Old 04-24-2012, 07:58 PM
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Alrighty. I personally think this is my best work yet.

I drilled 14 6" cross holes in a 8 x 8 x 2" plate. Then I connected them all at the tops and bottoms with another cross hole to feed the beer in and out.

Plugged the drillings on the side of the plate I started from and viola, a custom cold plate that fits my edgestar!!
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  #23  
Old 04-24-2012, 08:00 PM
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next step was to grow a set of cojones and drill my fridge. Well, pretty sure I marked the right spot a week ago.... so, bam, straight through with my 1/4" drill bit. I then stuck a few pieces of 1/4" copper through to hook lines to.

No leaks!!!! X-Ray's work!!! Fridge is just plugging away!
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  #24  
Old 04-24-2012, 08:02 PM
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Last step, hook it all up!

A shot of the inside with the cold plate plumbed in, and the outside with the serving line and keg line hooked up.

I am currently waiting to let it cool down for a test I'll probably pack cold packs around the plate to make sure it has enough cold capacity for some thirsty Cruise Moab adventurers......
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Old 04-24-2012, 08:37 PM
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Outstanding. May I be the first to propose a toast!
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Old 04-24-2012, 10:07 PM
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Nice job!! That is a lot of drilling,thankfully it was aluminum.

Question for you, will the copper have any negative effect on the beer? It is only a little piece but while the beer is stored will the carbonation do anything to it?
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Old 04-24-2012, 10:25 PM
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Just awesome, can't wait to test it!
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  #28  
Old 04-25-2012, 12:05 AM
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it took a while to drill for sure..

I am not sure about the copper, but I don't think it will affect the beer at all. I have run beer through a copper coil to cool it in the past and it has done fine. Maybe stainless is better? I can't bend that as easily though. perhaps a beer expert can chime in..
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Old 04-25-2012, 12:58 AM
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Crap...It would appear that I might have given up one of the best camping spots in Slickrock this year
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  #30  
Old 04-25-2012, 06:38 AM
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Quote:
Originally Posted by rover67 View Post
I am not sure about the copper, but I don't think it will affect the beer at all. I have run beer through a copper coil to cool it in the past and it has done fine. Maybe stainless is better? I can't bend that as easily though. perhaps a beer expert can chime in..
Both copper and aluminum are bad for beer, stainless is much (and I stress much) better. But thing being what they are, making everything out of stainless is not possible, so all we can do is minimize exposure times to things that are not stainless, glass or plastic.

Copper introduced after fermenting will likely rise enough to be toxic to yeast and leads to hazy beer. Remember your inorganic chemistry, copper has positive ions and reacts easily. The only time copper is useful is during the initial boil and that's to introduce small (trace) amounts to enhance yeast viability. But the exposure to the copper during boiling is short, not a lot of time to react. The yeast consumes it, which is also why people with non-copper brew kettles have to adjust for this.

Also as for storage, remember that you probably fix your brew water pH with calcium sulfate (CaSO4, gypsum), your finished beer will have dissolved residual sulfate since the calcium is reacted to reduce pH and leaves sulfate. This is good, it's a slight preservative. However recalling that copper (Cu) is reactive with a +2 charge and sulfate (SO4) has a -2 charge, well, the resulting reaction leaves you with dissolved copper sulfate. CuSO4 is mildly poisonous to humans and particularly acute as the pH goes down.

However if I had to chose I would go with copper in an instant over aluminum. I'd never let aluminum touch my food unless there was no other choice. Like Oscar Blues and no glass bottles policies. But they coat the can so that the beer is not exposed to raw aluminum. Plus, it's hard to argue that a life without beer is worse than brain damage and kidney failure from aluminum toxicity. Which, going full circle with the argument, is the same effect copper has on yeast after fermentation, heavy metal toxicity.

Now you want to hear another irony? Beer's Law, which describes the relative light absorptivity of a material, is often demonstrated using dissolved CuSO4, thus one reason why we get the haze in beer is scientifically important in human history.
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