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<p>[QUOTE=&quot;Conder101, post: 514424, member: 66&quot;]A brief acetone soak will strip the oil from the coin.</p><p><br /></p><p><br /></p><p>Olive oil is slightly acidic.&nbsp; Virgin olive oil (from the first pressing of the olives has the least acid and so is gentler, but slower than olive oil from later pressings of the olives.</p><p><br /></p><p><br /></p><p>Other oils can soften grime but may not do as much for corrosion byproducts because they do not have the acid to help break it down.&nbsp; Also other vegtable oils may have a tendency to oxidize and either go rancid or polymerize.</p><p><br /></p><p><br /></p><p>Keep and eye on it and if you note a color change from the acids in the olive oil you may want to stop, or at least start keeping a closer watch on the process.[/QUOTE]</p><p><br /></p>

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