![]() The refrigerator replaced the icebox, which had been a common household appliance for almost a century and a half. A similar device that maintains a temperature below the freezing point of water is called a freezer. ![]() The optimal temperature range for perishable food storage is 3 to 5 ☌ (37 to 41 ☏). A refrigerator maintains a temperature a few degrees above the freezing point of water. ![]() The lower temperature lowers the reproduction rate of bacteria, so the refrigerator reduces the rate of spoilage. Refrigeration is an essential food storage technique around the world. For other uses, see Refrigerator (disambiguation) and Fridge (disambiguation).įood in a refrigerator with its door open Exterior of a Samsung refrigeratorĪ refrigerator, colloquially fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature.
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