A refrigerator (often called a "fridge" for short) is a mechanical appliance for the storage and preservation of perishable food. The term refrigerator is most commonly applied to the appliance used in the home. It is basically designed as a freezing unit with a compartment referred to as a freezer which shares its refrigeration with another compartment for cold temperatures maintained above freezing. The refrigerator is a relatively modern invention along side of most other kitchen appliances. It replaced the common icebox which had been a household item for almost a century and a half prior, and sometimes is still called by the name "icebox".
Commercial refrigeration units, which go by many other names, were in use for almost 40 years prior to the common home models. The fact that they operated with toxic ammonia gas systems made them unsafe for home use. Practical household refrigerators were introduced in the 1920s and gained wider acceptance in the 1930s as prices fell and non-toxic, nonflammable synthetic refrigerants, such as Freon or R-12 refrigerants were introduced.
Kitchen and Dining :: Appliances
Food Safety :: Food Science
Appliances :: Kitchen and Dining

BigTray: Reach-In Refrigerators/Freezers - Features buying tips and advice for kitchen equipment used in restaurants and institutional kitchens.
Meta Description: [ BigTray offers informative buyer guides on refrigerators and freezers to help in making your purchasing decision. ]
Consumersearch.com: Refrigerators - Gives product and model number ratings and reviews, comparisons, buying tips.
Meta Description: [ ConsumerSearch.com reviews refrigerator reviews; best refrigerators include the Kenmore and Kenmore Elite side-by-sides ($800-$2,500), GE top-freezers ($500-$1,850), Amana Easy Reach Series ($800-$2,500), LG LRFC25750 ($1,500-$1,750). ]
Epinions: Refrigerators - Comprehensive site with consumer reviews, price information, related appliances, buying tips and advice, ratings.
Meta Description: [ Epinions has the best comparison shopping information on Refrigerators. Compare prices from across the web and read reviews from other consumers on Refrigerators before you decide to buy. ]
Good Housekeeping Institute: Chill Out - Article about side-by-side refrigerators.
Meta Description: [ Heloise has helpful hints to keep your kitchen clean. ]
How Stuff Works: How Refrigerators Work - Illustrated tutorial shows how a refrigerator operates, with related information about home and car air conditioners. Also explains propane refrigerators found in RVs, the new electronic coolers and cold packs.
Meta Description: [ Learn how refrigerators work, take apart a refrigerator, and read reviews of built-in refrigerators, side-by-side refrigerators, and compact refrigerators. ]
HowStuffWorks: Frost-free Refrigerators - How does a frost-free refrigerator work?
Meta Description: [ How does the freezer of the modern refrigerator stay frost-free? ]
HowStuffWorks: What Is the Ideal Temperature for a Refrigerator? - Identifies the best temperature for keeping food safely.
Meta Description: [ What is the ideal temperature for a refrigerator? ]
ImproveNet: Refrigerators/Freezers - Lists major manufacturers and then lists what they offer in a product line. Allows consumer to view what is on the market within a product type.
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