On Mon, 23 Jan 2006 02:41:16 GMT, "William Wixon"
wrote:

rectangular metal vegetable oil containers out in the back
by the garbage by every chinese restaurant i know of. free.

Trouble with those is that they're nearly all plastic coated on the
inside (olive oil though usually seems free of this). Taking the plastic
off involves a powered wire brush (either before or after heating) and
that also damages the thin tin plating.

"Terne plate" is hard to find, but it has a thickness of clean tin on it
that's expecting to be worked on further.