There is no need to struggle with rusted screws, bolts or nuts. A little cola helps to loosen the rust and make them manipulable. Simply apply a little cola to a damp cloth and wrap it around the rusty area for a few minutes.

In more stubborn cases, you can pour the cola into a syringe and spray it directly onto the rust.

The acid in the cola eats into the rust and helps the screw to unscrew.