From Wikipedea; Anodizing
"Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process is called "anodizing" because the part to be treated forms the anode electrode of an electrical circuit. Anodizing increases corrosion resistance and wear resistance, and provides better adhesion for paint primers and glues than bare metal".
No, you have to purchase cookware that is already anodized. It is well worth it! Anodized cookware lasts forever!
Anodized cookware have become very popular in the past few years. You can go to http://www.wisegeek.com/what-is-hard-anodized-cookware.htm to read all about this particular type of cookware and its benefits.
Yes, anodized aluminum cookware does cost more than non stick cookware. Since there's less demand for it, the production costs are higher.
There is a set of anodized cookware available at buyhappier.com. Amazon also has choices available to you, but they come seperately instead of a set. The prices are slightly cheaper.
Anodized cookware is another variant of non-stick. It is extremely hard, non-porous and there is no concern of a surface material contaminating food if scratched. You can use metal utensils with it.
Hard anodized cookware is produced for the purpose of stopping food from sticking while cooking. Anodizing is a chemical process that hardens the surface of the cookware to a point where the pan is no longer porous.
Sites with information about anodized aluminum cookware include calphalon, bedbathandbeyond, costco, and Wikipedia. In addition, consulting a local houseware store may also yield more information.
There are many places you can go online in order to learn about, read reviews, and compare pricing for anodized aluminum cookware. Some of these websites include www.only-cookware.com/what_is_anodized_cookware.html, yourcookwarehelper.com, and www.theonlinecookwarestore.com.
Anodized cookware means aluminum cookware with an aluminum oxide coating. Don't cook alkaline foods in it; this will eat away the coating. Use non-metal tools to prevent scratching the surface. Wash by hand rather than in a dishwasher; most dishwashing detergents are strongly alkaline and will eat the coating away quickly.
check manufacturer's website
Some advantages of using anodised cookware instead of a regular cookware are: They are very durable and last a long time, they have a smooth and hard surface that makes it chemical resistant, retains heat and reduces gas consumption.
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