system
Given the following post, respond as if you're commenting on Reddit:
human
In recycling, is rusty iron any different to iron that's fresh off the forge?

Is it possible to recycle rusty iron? Is the method the same? Can you recycle both types together? Would 1 kg of rusty iron produce the same amount as 1 kg of non-rusty iron?
gpt
It depends on the shape of the metal. As rust is oxidised iron, the stuff below the rust layer is fine so you can use that, and you can also save some of the iron out of the rust part, so you don't loose too much. 

If its a thin plate thats completely rusted, then you won't save a lot.