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Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Forbidden Metal
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Old 01-25-2005, 11:05 PM   #1
Ruy Lopez
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Default Forbidden Metal

Am I correct in my thinking that only only metals that should be employed when constructing brewing equipment are stainless steel and copper?

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Old 01-26-2005, 06:01 PM   #2
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Hmm...ideally. But that's not the reality as far as I have ever seen. You always end up with some vinyl hoses involved, brass valves, aluminium pots, etc...

When I put together my current setup, I did spring for stainless ball valves which are a lot more expensive than brass. I really don't think brass causes harm as long as you don't scratch it up, but stainless is more ideal for sure.

It's tough to avoid plastic tubing unless you are handy with the soldering iron and build an entirely copper plumbing system. Sounds tough to me. I'm always moving things around, and the flexibility of the plastic tubing is very handy.

Aluminium is a hotly debated topic. Is it safe or does it cause alzheimers? Well, I've definitely brewed in aluminium, but I do prefer my stainless kegs. I don't think I have alzheimers...

So, I guess, yes is the answer to your question, but I imagine that achieving that goal will be tough. And it's still worth brewing even if you don't have a stainless/copper system throughout.

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Old 01-26-2005, 08:27 PM   #3
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I have read where some people say metal other than stainless steel will cause health problems and give off flavors. But for every thing that says other metals are bad there is another to say they are fine.
I currently use a aluminum pot and have not notice it causing flavor problems and my health has not changed (still healthy).

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Old 01-27-2005, 01:58 AM   #4
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I've discovered that the new interpreter that works in my classroom has been welding and such since he was 12. Coincidently, a friend of his just introduced him to home brewing.

I showed him some plans for a keg system a few days ago. His eyes lit up. He's agreed to work for beer and some sourdough bread.

I can live with that.

After bottling this weekend I'm going to head out to find what I need.

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Old 01-27-2005, 03:43 AM   #5
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Quote:
Originally Posted by Ruy Lopez
I've discovered that the new interpreter that works in my classroom has been welding and such since he was 12. Coincidently, a friend of his just introduced him to home brewing.

I showed him some plans for a keg system a few days ago. His eyes lit up. He's agreed to work for beer and some sourdough bread.

I can live with that.

After bottling this weekend I'm going to head out to find what I need.
How old is he now?
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Old 01-27-2005, 03:49 AM   #6
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Thirteen.

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Old 01-28-2005, 02:44 AM   #7
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He's almost 14. One of my students, I told him I'd give him extra credit.

Could you imagine the headlines?



He's the interpreter for one of my deaf students. Late 30s guess. Used to do custom bike welding and such.

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Old 01-28-2005, 03:49 AM   #8
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Hope y'all know that 21 law.. haha

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Old 01-28-2005, 09:28 AM   #9
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It probably doesn't matter what metals you use, but just be careful that you don't let certain metals touch each other in the wort. If they are at opposite ends of the galvanic table, one will corrode like hell. Have a read of any decent materials or physics text book and you'll find a table and explanation.

I wasn't thinking one day and used a galvanised steel washer on a brass valve in a stainless pot. The zinc corroded away and the beer ended up with a metallic taste.

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Old 01-31-2005, 06:47 PM   #10
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Quote:
Originally Posted by Janx
Aluminium is a hotly debated topic. Is it safe or does it cause alzheimers? Well, I've definitely brewed in aluminium, but I do prefer my stainless kegs. I don't think I have alzheimers...
This is the only thing I'd mention too. I don't think its worth the uncertainty, despite the cheapness of all those turkey fryers. If you want to save some money, get an enamel kettle instead of aluminium. Stainless would be best though.
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