How to maintain stainless steel kitchen utensils not easy to rust?

2023 02/14

Stainless steel kitchen utensils are not easy to rust, mainly relying on the formation of an extremely thin, firm and fine stable chromium-rich oxide film (protective film) on the surface, which prevents the continuous infiltration and oxidation of oxygen atoms, and obtains the ability to resist rust. Once the film is damaged for some reason, the oxygen atoms in the air or liquid will continue to infiltrate or the iron atoms in the metal will continue to ionize, forming loose iron oxide, and the surface of stainless steel kitchenware will be continuously rusted. There are many forms of damage to this surface film, and the most common ones in daily kitchen activities are as follows:

1. Decoration impurities: Alkaline water, lime water, oil stains, etc. on the walls of the decoration remain on the surface of the stainless steel. If not cleaned in time, it will cause local corrosion and rust spots.

2. Iron objects: Iron nails, iron wires and other iron tools left on stainless steel kitchen utensils for a long time will cause floating rust and yellow spots on the surface.

3. Organic juice: chemical agents, cleaning agents, paints, sauces, oil stains, tea leaves, etc. remain on the surface of stainless steel kitchen utensils for a long time, causing mildew, discoloration and local corrosion.

4. Metal dust: Metal dust with minerals or acid and alkali in the house falls on the surface of stainless steel kitchen utensils. When it encounters humid gas and condensed water between stainless steel, it triggers electrochemical reactions to form yellow spots and rust spots.

5. Impurities in water pipes: There are iron filings and rusty water in the water pipes. When these impurities stay on the surface of stainless steel and are not washed in time, rust spots and rust spots will appear.

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