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Barkeepers Friend dissolves off rust. It's oxalic acid, non-abrasive, gentle. Tap a little BF in some water and make a solution. Let it do it's thing without scrubbing. The powder drops out of the water to make a sediment layer on the bottom, so it has to be swirled around occasionally.
Overnight soak in vinegar will remove rust completely. Straight vinegar or diluted with water doesn't seem to make much difference. I do that with tools and car parts. They come out so clean they rust faster the next time, so they need to be coated with something.
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Another ho-hum day in Paradise
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