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Wednesday, October 21, 2009

Stainless Steel Refrigerator


A refrigerator is a cooling appliance comprising a thermally insulated compartment and a heat pump--chemical or mechanical means—to transfer heat from it to the external environment, cooling the contents to a temperature below ambient.

Refrigerators are extensively used to store foods which spoil from bacterial growth if not refrigerated.
It is a device which maintains a temperature a few degrees above the freezing point of water.

A similar device which maintains a temperature below the freezing point of water is called a "freezer."

The refrigerator is a relatively modern invention among kitchen appliances. It replaced the icebox, which had been a common household appliance for almost a century and a half prior. For this reason, a refrigerator is sometimes referred to as an "icebox".
A vapor compression cycle is used in most household refrigerators.

The refrigerator allows the modern family to keep food fresh for much longer than before. This, along with the modern supermarkets, allows most families, without a sizeable garden in which to grow vegetables and raise animals, a vastly more varied diet and improved health resulting from improved nutrition. Diary products, meats, fish, poultry and vegetables can be kept refrigerated in the same space within the kitchen (although raw meat should be kept separate from other foodstuffs for reasons of hygiene.

The refrigerator lets people eat more salads, fresh fruits and vegetables, without having to own a garden or an orchard. Exotic foodstuffs from far-off countries that have been imported by means of refrigeration can be enjoyed in the home because of domestic refrigeration.

Freezers allow households to buy food in bulk: it can be eaten at leisure, and bulk purchase saves money. Ice on demand not only adds to the enjoyment of cold drinks, but is useful for first-aid, and for cold packs that can be kept frozen for picnics or in case of emergency.
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