In the meantime, if you’re curious about the language and its low-level abilities yourself, [phil-opp] has written a series of blog posts on building your own little bare metal kernel in Rust.

"It appears orange with a flaky texture ... your precious steel and iron pieces in a cool, dry place, to safeguard them from moisture. "To avoid rust and tarnish, keeping metal dry and storing ...

This isn’t a function of the rust remover as much as it reflects the degree of carbon in the steel or the weld metal. Some steels will emit more carbon in the rust removal process than others.