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The Comparison and Distribution of Temperatures Established in Display Stands and Food Surfaces for Cold and Frozen Foods in large Discount Stores in Korea  

Choi, Moon-Sil (Department of Food and Nutrition, Kunsan National University)
Choi, Jeong-Ae (Department of Food and Nutrition, Kunsan National University)
Kim, Mee-Hye (National Institute of Food & Drug Safety Evaluation, Food Contaminants Division)
Bahk, Gyung-Jin (Department of Food and Nutrition, Kunsan National University)
Publication Information
Journal of Food Hygiene and Safety / v.26, no.4, 2011 , pp. 308-314 More about this Journal
Abstract
This study surveyed and compared the temperatures established in display stands and food surfaces for cold and frozen foods in large discount stores in Korea. The temperatures established in display stands for cold food ranged with $3.5{\pm}1.8^{\circ}C$ as mean, minimum and maximum were $0^{\circ}C$ and $7^{\circ}C$. However, the surface temperatures of cold food on sale ranged with $10.7{\pm}2.9^{\circ}C$ as a mean, minimum $4.6^{\circ}C$ and maximum $18.4^{\circ}C$. Totally, the surface temperature of cold food on sale was $7.2^{\circ}C$, as a mean, higher than established in display stands for cold food in large discount stores in Korea. 53% of the surveyed cold foods were more than $10^{\circ}C$ in surface temperature and only 47% was less than $10^{\circ}C$. The differences between temperatures were lowest in fruits, salads and vegetables, but highest in milk products. On the other hand, the temperatures established in display stands for frozen food showed a range with $-20.7{\pm}1^{\circ}C$ as a mean. However, the surface temperatures of frozen food on sale showed a range with $-15.4{\pm}5^{\circ}C$ as a mean, minimum $-28^{\circ}C$ and maximum $-4.6^{\circ}C$ (included defrosting). The surface temperatures of frozen food, frozen meats, frozen processed foods and ice creams were $-13.8^{\circ}C$, $-15.9^{\circ}C$, and $-16.8^{\circ}C$, respectively. Only 32.3% of surveyed frozen foods showed less than $-18^{\circ}C$ in surface temperature. In conclusion, the temperatures established on cold and frozen food display stands were less than those of cold and frozen food surfaces on sale. There was also much variation in food surface temperatures during cold and frozen food storage and sales. Therefore, a temperature management system technology use at the distribution level for cold and frozen foods will be developed.
Keywords
Large discount stores; Cold and frozen foods; Temperatures; Comparison; Distribution;
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Times Cited By KSCI : 3  (Citation Analysis)
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