Remove Rust

To remove rust from exceptionally rusted iron or steel articles such as nuts rusted on to a bolt, place in enough DYC Malt Vinegar to cover completely and leave overnight.  

DYC Malt Vinegar

1
Place items in a container.
2
Cover completely with DYC Malt Vinegar.
3
Leave overnight.
4
Wash off the vinegar with clean water. Lightly scrub off the rust with a soft brush.