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cookware and bakeware : ウィキペディア英語版
cookware and bakeware

Cookware and bakeware are types of food preparation containers, commonly found in a kitchen. Cookware comprises cooking vessels, such as saucepans and frying pans, intended for use on a stove or range cooktop. Bakeware comprises cooking vessels intended for use inside an oven. Some utensils are considered both cookware and bakeware.
The choice of material for cookware and bakeware items has a significant effect on the item's performance (and cost), particularly in terms of thermal conductivity and how much food sticks to the item when in use. Some choices of material also require special pre-preparation of the surface—known as seasoning—before they are used for food preparation.
Both the cooking pot and lid handles can be made of the same material, but will mean that when picking up or touching either of these parts oven gloves will need to be worn. In order to avoid this, handles can be made of non heat conducting materials, for example bakelite, plastic or wood. It is best to avoid hollow handles because they are difficult to clean or to dry.
A good cooking pot design has an 'overcook edge' which is what the lid lies on. The lid has a dripping edge that avoids condensation fluid from dripping off when handling the lid (taking it off and holding it 45°) or putting it down.
==History==

The history of cooking vessels before the development of pottery is minimal due to the limited archaeological evidence. The earliest pottery vessels, dating from , were discovered in Xianrendong Cave, Jiangxi, China. The pottery may have been used as cookware, manufactured by hunter-gatherers. Harvard University archaeologist Ofer Bar-Yosef reported that "When you look at the pots, you can see that they were in a fire." It is also possible to extrapolate likely developments based on methods used by latter peoples. Among the first of the techniques believed to be used by stone age civilizations were improvements to basic roasting. In addition to exposing food to direct heat from either an open fire or hot embers it is possible to cover the food with clay or large leaves before roasting to preserve moisture in the cooked result. Examples of similar techniques are still in use in many modern cuisines.〔Tannahill pg 13〕
Of greater difficulty was finding a method to boil water. For people without access to natural heated water sources, such as hot springs, heated stones ("pot boilers") could be placed in a water-filled vessel to raise its temperature (for example, a leaf-lined pit or the stomach from animals killed by hunters).〔Tannahill pg 14-16〕 In many locations the shells of turtles or large mollusks provided a source for waterproof cooking vessels. Bamboo tubes sealed at the end with clay provided a usable container in Asia, while the inhabitants of the Tehuacan Valley began carving large stone bowls that were permanently set into a hearth as early as 7,000 BC.
According to Frank Hamilton Cushing, native American cooking baskets used by the Zuni (Zuñi) developed from mesh casings woven to stabilize gourd water vessels. He reported witnessing cooking basket use by Havasupai in 1881. Roasting baskets covered with clay would be filled with wood coals and the product to be roasted. When the thus fired clay separated from the basket, it would become a usable clay roasting pan in itself. This indicates a steady progression from use of woven gourd casings to waterproof cooking baskets to pottery. Other than in many other cultures, native Americans used and still use the heat source inside the cookware. Cooking baskets are filled with hot stones and roasting pans with wood coals.〔(Online Reader - Project Gutenberg )〕 Native Americans would form a basket from large leaves to boil water, according to historian and novelist Louis L'Amour. As long as the flames did not reach above the level of water in the basket, the leaves would not burn through.
The development of pottery allowed for the creation of fireproof cooking vessels in a variety of shapes and sizes. Coating the earthenware with some type of plant gum, and later glazes, converted the porous container into a waterproof vessel. The earthenware cookware could then be suspended over a fire through use of a tripod or other apparatus, or even be placed directly into a low fire or coal bed as in the case of the pipkin. Ceramics conduct heat poorly, however, so ceramic pots must cook over relatively low heats and over long periods of time. However, most ceramic pots will crack if used on the stovetop, and are only intended for the oven.
The development of bronze and iron metalworking skills allowed for cookware made from metal to be manufactured, although adoption of the new cookware was slow due to the much higher cost. After the development of metal cookware there was little new development in cookware, with the standard Medieval kitchen utilizing a cauldron and a shallow earthenware pan for most cooking tasks, with a spit employed for roasting.〔Tannahill pg 16, 96〕〔Beard pg 174-175〕
By the 17th century, it was common for a Western kitchen to contain a number of skillets, baking pans, a kettle and several pots, along with a variety of pot hooks and trivets. Brass or copper vessels were common in Asia and Europe, whilst iron pots were common in the American colonies. Improvements in metallurgy during the 19th and 20th centuries allowed for pots and pans from metals such as steel, stainless steel and aluminium to be economically produced.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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