We got some really old cast iron this weekend and it has a lot of rust on it. Right now we have it soaking in vinegar and that seems to be helping some. Does anyone know of any other tips to get the rust out?
I've used vinegar myself and it's the only effective remedy I know of. unfortunately it does take a while with the soaking but it's never let me down before. You could probably get some chemicals to remove it, but I would be concerned about the effect that would have on the food. You know vinegar is safe so I'd say that is the best option.