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Cast iron cookware

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Cast iron is used for cookware because it is non-toxic, has excellent heat retention and diffusion properties, and is easy to mold. Cast iron cookware is either bare or enameled.

1 Bare cast iron
2 Enameled cast iron
3 References
4 External links

Bare cast iron

Cast iron pan

Bare cast-iron vessels have been used for cooking for hundreds of years.^[1] Cast iron's ability to withstand and maintain very high temperatures makes it a common choice for searing or frying, and its excellent heat diffusion and retention makes it a good option for long-cooking stews like gumbo or Chili con carne. Because cast iron skillets can develop an extremely "non-stick" surface, they are also a good choice for egg dishes, particularly scrambled eggs. Other uses of cast iron pans include making cornbread and pineapple upside-down cake. Types of bare cast iron cookware include dutch ovens, frying pans, deep fryers, tetsubin, woks, potjies, and griddles.

Health effects

Cast iron cookware leaches small amounts of iron into the food. Anemics, and those with iron deficiencies, may benefit from this effect, though those with excess iron issues (for example, people with hemochromatosis) may suffer negative effects. ^[2]^[3]

Seasoning

Cast iron skillets, before seasoning (left) and after several years of use (right).

Seasoning is a process used to protect cast iron and carbon steel^[4] cookware from rusting, provide a non-stick surface for cooking, and prevent food from interacting with the iron of the pan. Seasoning is three-step process, involving cleaning the cookware to expose the bare metal, applying a layer of animal fat or vegetable oil, and heating the cookware to bond the fat to the metal.^[5] Seasoning also occurs as a natural by-product of using the cookware to cook foods that deposit oils or fats on the pan. New cast iron that is not pre-seasoned is often sold with a protective coating (wax or shellac). This coating must be removed (typically by scouring) before the pan is seasoned to expose the bare cast iron surface.^[6] For already-used pans the cleaning process can be more complex, involving rust removal and deep cleaning (with strong soap or lye,^[7] or by burning in a campfire or self-cleaning oven^[8]) to remove existing seasoning and build-up. Fats and oils typically used for seasoning include lard, hydrogenated cooking oils such as Crisco, and palm or coconut oil (in general, oils that are high in saturated fats, and therefore less likely to become rancid). Heating the cookware (such as in a hot oven or on a stovetop) facilitates a reaction between the oil and the iron, essentially cooking the seasoning into the pan. Some cast iron users advocate heating the pan slightly before applying the fat or oil to ensure that the pan is completely dry and to open "the pores" of the pan.^[9], ^[10] Newly seasoned cast iron will have a dark brown coating. If the seasoning process is repeated, or after prolonged use, this coating will turn glossy and black, and the non-stick properties of the pan will further improve.^[11]

Brands

Well-established brands of bare cast iron cookware include Griswold, Wagner, Lodge, and John Wright.

Enameled cast iron

Enameled cast iron is cast iron that has a vitreous enamel glaze. This type of cast iron was a popular material for cookware in the late 19th and early to mid-20th centuries, but it has since been replaced by modern metal alloys. It remains a popular material for Dutch ovens. The enamel coating over the cast iron prevents rusting, eliminates the need to season the metal, and allows for more thorough cleaning. Furthermore, pigments used in the enameling process can produce vibrant colors. While enamel coated cast iron doesn't have the seasoning and cleaning issues of bare cast iron, it can be several times more costly, and does not have some of the benefits of bare cast iron, for example the ability to withstand searing heat and the leaching of dietary iron. Manufacturers of enameled cast iron cookware include Le Creuset, Lodge, Staub, Descoware, and John Wright. Several newer brands are associated with well-known celebrities and chefs, including Daniel Boulud Kitchen, Martha Stewart (made and sold by K-mart), Rachael Ray Cookware (made by Analon), and Mario Batali (made by Copco).