Holy rusted metal batman!
Mimi wrote:
What is rust?
I mean - is it ruined metal or is it something that sits on top of metal? i think it is ruined metal, yes?
It is oxidised metal. Yes, ruined, in that it doesn't have the same properties as the metal it's formed out of. You don't want it on kitchenware because it makes the surface impossible to clean properly, and it doesn't look nice.
Quote:
Once something has rust can you remove it?
Yes, but you can't return the metal to its original state, and the action of removing it tends to remove at least some "good" metal as well, so it ends up thinner. That might not be a problem though.
Quote:
If so will it always spring more rust - like gangrene, or if you clean or chip off the rust and look after it in a way to prevent more rust will it remain in it's current condition.
It depends on the metal. Mild steel will rust in slightly humid air, so you need to protect it with paint or something. However yes, if you keep it dry it should be OK.
Quote:
My pasta machine has a spot of rust on it where he cupboard under the sink had a leak
Kitchenware is normally stainless steel, which shouldn't rust. Chrome-plated steel will rust however, and the chrome plating is usually damaged at that point. Removing the rust can remove more of the plating and makes things worse
Same thing if it is painted, except you can re-paint it yourself.