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Chrome shelving??

 
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Skidder
BBQ Super Pro


Joined: 10 Feb 2008
Posts: 1720

PostPosted: Jun 28 2008    Post subject: Chrome shelving?? Reply with quote

I found some nice heavy dudy chrome shelving in the metal trash container at work. Can these be used for the cooking chamber and or grill area of a pig cooker? I noticed that most store bought grills have plated grills so I was wondering if I can use these. Thanks.
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peteque
Newbie


Joined: 19 May 2008
Posts: 56

PostPosted: Jun 28 2008    Post subject: Reply with quote

The chrome will peel. Maybe get the chrome sandblasted off.


Pete
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Skidder
BBQ Super Pro


Joined: 10 Feb 2008
Posts: 1720

PostPosted: Jun 29 2008    Post subject: Reply with quote

Yeah but will it be safe to use?
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Jeff_From_VA
BBQ Pro


Joined: 02 Jun 2008
Posts: 720

PostPosted: Jun 29 2008    Post subject: Reply with quote

Read this.

http://corrosion-doctors.org/Pollution/chromiumtoxicity.htm

I would get it all off before using it to cook on.
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necron 99
BBQ Super Pro


Joined: 04 Aug 2007
Posts: 2594
Location: San Antonio, TX

PostPosted: Jun 29 2008    Post subject: Reply with quote

Are you sure the chrome in the racks is chromium in the +6 (VI) valence state? The article mentions how highly reactive the chromium is in this state, how is it stabilized to stay that way in the racks?

Good thing my daily multivitamin with minerals uses chromium in the +3 (III) valence state Cool Note how stable and beneficial this form is according to the info at that link.
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Skidder
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Joined: 10 Feb 2008
Posts: 1720

PostPosted: Jun 29 2008    Post subject: Reply with quote

I just wonder why some grills and smokers have chrome cooking surfaces if it's not safe. Very confusing.
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necron 99
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Joined: 04 Aug 2007
Posts: 2594
Location: San Antonio, TX

PostPosted: Jun 30 2008    Post subject: Reply with quote

Ok. I'm not sure it's not safe in grill grates, as long as it's not chromium (VI). The only applications I've come across for Chromium (VI) compounds were papers I've seen from 30 or so years ago, as a biocide for recirculated cooling water systems, like the big chillers at industrial plants and big buildings where the water has evaporative cooling at some point. This was phased out in the USA AFAIK quite a while back.

Hopefully some of the folks who are experienced metal workers here can chime in about the chrome used on grill grates (including charcoal grates). I've used numerous cookers with chromed grill grates over the years, and like you, I see they're still being sold today. I'm not sure I'd use some cast-off shelving myself for food prep, not knowing what might or might not be under the chrome coating.

Now galvanized and otherwise zinc coated is another matter when used for BBQ, especially in the firebox. There's been a few threads here about it.
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