With improper use, cleaning and storage, stainless steel cutlery will develop pitting, which can lead to rust spots. Even the most expensive knives are prone to pitting, but with good general care, stainless steel knives will remain rust free for life. The key to preventing rust is preventing pits in the blade. Promptly clean knives after use and keep them away from other knives.
Apply a small amount of metal polish to a clean, soft cloth.
Gently rub the rusted area with the metal polish, rubbing in the direction of the grinding grooves until the rust is removed.
Wipe the blade clean with a damp cloth and dry well.
Rinse knives promptly after use to remove caustic food particles. Avoid prolonged contact with water; soaking knives causes pits in the metal.
Wash knives by hand and dry them well.
Store knives on a knife magnet instead of tossing them together in a drawer. Knives that come in contact with each other will cause pits.
Promptly remove knives from the dishwasher if you'd rather not hand wash them. Keep knives out of the silverware basket; place them on the upper rack away from other knives.