Cookware is one of many products that is often anodized.
The process of anodizing is used to increase the thickness of the oxide layer on the surface of metal parts. Anodizing can often protect the metals, and you will find it on items such as cookware, knives, and even cars. But many people prefer the more natural, bare look of metal on their product. For those people who would rather remove the anodizing, it is possible to do so with some elbow grease and the right substances.
1. Put the anodized item onto newspaper. Oven cleaner is the most effective substance for removing anodizing, but it is highly corrosive, so you must have newspaper down to absorb any spills. Otherwise, you risk ruining whatever surface area you work on.
2. Spray the anodized item with a coat of oven cleaner. It should be a relatively thin coat, but one that covers the entire anodized area. Leave the item and allow the oven cleaner to soak in for around 5 minutes.
3. When you return, you will see the oven cleaner has already started corroding the anodized area. This is exactly what you want; repeat that step a number of times until all the anodized area has been removed. This could take several repeats, especially if the surface is anodized to a high standard.
4. To prevent any further corrosion of the metal, wash the item with warm water and a cloth when the oven cleaning substance has gotten rid of the anodized coating.
5. After the removal of the glossy layer of anodizing, you will notice the metal is somewhat dull. To remedy this, scrub the area with coarse, and then finer, wire wool. This should bring through the natural shine of the metal.
6. Buff the metal with metal polish and a rag. This should give the item a shine.