How to keep an iron pan from rusting forever

One essential kitchen utensil that every household needs is an iron pan, which is mainly used for cooking. Using an iron pan can increase the amount of trace element iron in the human body, but many families find that the iron pans they buy are often prone to rust, and rust is very harmful to the human body if eaten. However, if pots are made of other metals, which are not so ideal for human health, how can you keep your iron pot from rusting forever?

It is impossible for an iron pan to never rust. Iron is a relatively active metal and will react with oxygen to produce rust at any time. Although it is impossible to never rust, it is possible to slow down the rusting process. The methods are as follows:

First remove the rust on the surface of the iron pan, such as washing it with vinegar, and then apply a layer of oil (lard is preferred) on the surface of the iron pan.

Place the iron pot in a dry place where there is no water. Iron will rust faster if there is water.

Wash the iron pan after each use and keep it dry.

Additional information:

Rust is a chemical reaction, essentially an oxidation reaction of metals. The most common rust phenomenon is that iron products are exposed to air for a long time and undergo an oxidation reaction with oxygen, or are corroded by oxygen in water to become oxides.

Rust is a chemical reaction that occurs when iron is left for a long time. Iron is easy to rust, which is not only due to its active chemical properties, but also has a lot to do with external conditions. Moisture is one of the substances that makes iron susceptible to rust. However, water alone will not cause iron to rust. Only when oxygen in the air dissolves in water and oxygen reacts with iron in a water environment will iron oxide be produced, which is rust.

Commonly used methods to prevent iron from rusting are:

Form alloys to change the internal structure of iron. For example, adding metals such as chromium and nickel to ordinary steel to make stainless steel greatly increases the rust resistance of steel products.

Covering the surface of iron products with a protective layer is a common and important method to prevent iron products from rusting. According to the different components of the protective layer, it can be divided into the following types: a. Apply mineral oil, paint, enamel, spray plastic, etc. on the surface of iron products. For example: carriages, buckets, etc. are often painted; machines are often coated with mineral oil, etc. b. A layer of rust-resistant metal such as zinc, tin, chromium, nickel, etc. is plated on the surface of steel by electroplating, hot-dip plating, etc.

A dense oxide film can form on the surface of these metals, thus preventing the iron products from rusting when in contact with water, air and other substances.

Use chemical methods to form a dense and stable oxide film on the surface of iron products to prevent them from rusting.

Keeping iron surfaces clean and dry is also a good way to prevent rust.