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Portable Ice Chest, U.S. Patent # 2,663,167 (1953) A cooler, portable ice chest, ice box, cool box, [1] chilly bin (in New Zealand), or esky is an insulated box used to keep food or drink cool. Ice cubes are most commonly placed in it to help the contents inside stay cool.
Igloo Products Corp. is an American manufacturer of ice chests, drink containers, and supporting accessories. It is headquartered in Katy, Waller County, Texas, United States. Igloo is a subsidiary of the Dometic Group. The company was founded in 1947 in Katy and is known for its blue and white coolers.
Using ice for cooling and preservation was not new at that time; the ice house was an introductory model for the modern icebox. [4] The traditional kitchen icebox dates back to the days of ice harvesting , which was commonly used from the mid-19th century until the introduction of the refrigerator for home use in the 1930s.
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). [5] The first cooling systems for food involved ice. [6]
Cooling capacity is the measure of a cooling system's ability to remove heat. [1] It is equivalent to the heat supplied to the evaporator/boiler part of the refrigeration cycle and may be called the "rate of refrigeration" or "refrigeration capacity".
By the 1830s portable refrigerator chests became used in the meat trade, taking advantage of the growing supplies of ice to use ventilation to better preserve the food. [226] By the 1840s, improved supplies and an understanding of the importance of circulating air was making a significant improvement to refrigeration in the U.S. [229]
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