A 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. Refrigeration is an essential food storage technique around the world. The lower temperature lowers the reproduction rate of bacteria, so the refrigerator reduces the rate of spoilage. A refrigerator maintains a temperature a few degrees above the freezing point of water. The optimal temperature range for perishable food storage is 3 to 5 °C (37 to 41 °F). A similar device that maintains a temperature below the freezing point of water is called a freezer. The refrigerator replaced the icebox, which had been a common household appliance for almost a century and a half. The United States Food and Drug Administration recommends that the refrigerator be kept at or below 4 °C (40 °F) and that the freezer be regulated at −18 °C (0 °F).The first cooling systems for food involved ice. Artificial refrigeration began in the mid-1750s, and developed in the early 1800s. In 1834, the first working vapor-compression refrigeration system was built. The first commercial ice-making machine was invented in 1854. In 1913, refrigerators for home use were invented. In 1923 Frigidaire introduced the first self-contained unit. The introduction of Freon in the 1920s expanded the refrigerator market during the 1930s. Home freezers as separate compartments (larger than necessary just for ice cubes) were introduced in 1940. Frozen foods, previously a luxury item, became commonplace.
Freezer units are used in households as well as in industry and commerce. Commercial refrigerator and freezer units were in use for almost 40 years prior to the common home models. The freezer-over-refrigerator style had been the basic style since the 1940s, until modern, side-by-side refrigerators broke the trend. A vapor compression cycle is used in most household refrigerators, refrigerator–freezers and freezers. Newer refrigerators may include automatic defrosting, chilled water, and ice from a dispenser in the door.
Domestic refrigerators and freezers for food storage are made in a range of sizes. Among the smallest are Peltier-type refrigerators designed to chill beverages. A large domestic refrigerator stands as tall as a person and may be about one metre (3 ft 3 in) wide with a capacity of 0.6 m3 (21 cu ft). Refrigerators and freezers may be free-standing, or built into a kitchen. The refrigerator allows the modern household to keep food fresh for longer than before. Freezers allow people to buy perishable food in bulk and eat it at leisure, and make bulk purchases.

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  1. R

    Help Refrigerator

    Hello po. I would to get your opinion sa kung anong size and brand ng refrigerator ang dapat kong bilhin. I live alone in a studio apartment and only get a visitor occasionally.
  2. S

    Suggest Cheap Refrigerator

    suggest po kayo kung ano magandang brand ng ref 5-8k budget, balak ko po kasi bumili sa shappi bukas dahil payday.
  3. L


    ayus din:)
  4. G

    Turning on/off ng refrigerator tuwing gabi

    May nabasa lang ako na nakakasave sa kuryente kung iooff ang ref sa gabi kapag matutulog na at on ulet sa umaga vise versa naman sa iba. Di ba masisira ref kapag ganun na patay bukas? Malaki daw ang savings, sino gimagawa nito salamat
  5. A

    Refrigerator question

    Magkano kaya ang magagastos monthly sa kuryente pag gamit ang refrigerator? Sana may maka tulong Thanks :)
  6. B

    Brand new beko ref... fridge not working, freezer ok

    Mga 30min na nakasaksak normal lang bayun?
  7. L

    Trivia Search 241543903 in google images

    Sarap sa loob ng ref:)
  8. B

    Magandang bilihan ng appliances.

    Hello po. San po kaya maganda bumili ng refrigerator?
  9. B

    Tips sa pagbili ng refrigerator

    Hello po. I'm planning to buy a refrigerator for my parents this Christmas. Any tips naman po like anong brand maganda, type at saan maganda bumili. Budget ko is up to 20-30k. Gusto ko po sana e yung matipid sa kuryente, maganda ang kalidad at katamtamang laki lang. Nasearch ko na maganda daw...