Next, take a cup, turn it upside down and add some salt and vinegar. You will have an acid preparation that will remove dirt and oxidation from the scissor blades.

Now open the scissors and start gently rubbing the blades against the bottom of the cup in the opposite direction. Both sheets should be rubbed evenly. Carry out this operation until all dirt and rust have been removed from the blades.

Once this phase is completed, rinse the blades with water and dry them with a clean cloth. Check that the scissors are sharp and repeat the process if you are still not satisfied with the result.

This is the preferred method for seamstresses to keep their scissors sharp and in good condition.