On Sep 1, 2005, at 7:57 AM, dalecochoy wrote:

Now, you can roll it into nice rolls and anneal it in your barbecue
this
weekend after you're done grilling burgers.

If you anneal in a BBQ, I recommend that you wash the BBQ out very
thoroughly when you are done annealing.

Annealing copper blackens, or oxidizes, the surface of the wire. A
crust of black copper oxide is created that flakes off as a powder &
small flakes during and after the annealing process. You won't be able
to see the oxide in a BBQ because it is won't be visible against the
charcoal & black metal. I wouldn't be able to see it in my propane BBQ
either. But it will be there & it is a toxicity concern.

Jim

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