Flash pasteurization: Difference between revisions

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'''Flash pasteurization''', also called "'''high-temperature short-time'''" ('''HTST''') processing, is a method of heat [[pasteurization]] of perishable beverages like [[juice|fruit and vegetable juices]], beer, [[kosher wine]], and some [[dairy products]] such as milk. Compared with other pasteurization processes, it maintains color and flavor better, but some cheeses were found to have varying responses to the process.<ref>[http://www.allbusiness.com/food-beverage/food-industry-food-mfg-canned/7295043-1.html The Effects of Flash Pasteurization of Milk upon the Flavor and Texture of Cheddar Cheese]</ref>

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The liquid moves in a controlled, continuous flow while subjected to temperatures of 71.5&nbsp;°C (160&nbsp;°F) to 74&nbsp;°C (165&nbsp;°F), for about 15 to 30 seconds.

The standard US protocol for flash pasteurization of milk, 71.7&nbsp;°C (161&nbsp;°F) for 15 seconds in order to kill [[Coxiella burnetii]] (the most heat-resistant [[Germ theory of disease|pathogenic germ]] found in raw milk), was introduced in 1933, and results in five "log reduction value" (99.999%) or greater reduction in harmful bacteria.<ref name=stabel>{{Citation | last = Stabel | first = J. R. | last2 = Lambertz | first2 = A. | title = Efficacy of Pasteurization Conditions for the Inactivation of ''Mycobacterium avium'' subsp. ''paratuberculosis'' in Milk | journal = Journal of Food Protection | volume = 67 | issue = 12 | year = 2004 | pages = 2719 | url = http://naldc.nal.usda.gov/download/40448/PDF}}</ref> An early adopter of pasteurization was [[Tropicana Products]], which has used the method since the 1950s.<ref>[http://www.allbusiness.com/food-beverage/food-industry-food-mfg-canned/7295043-1.html press release], 10 December 1996</ref> The juice company [[Odwalla]] switched from non-pasteurized to flash-pasteurized juices in 1996 after tainted unpasteurized apple juice containing [[E. coli O157:H7|''E. coli'' O157:H7]] sickened many children and killed one.<ref>[http://query.nytimes.com/gst/fullpage.html?res=9507EFD91438F937A35752C1A960958260&sec=health&spon=&partner=permalink&exprod=permalink New York Times, Questions of Pasteurization Raised After E. Coli Is Traced to Juice], ''The New York Times'', 4 November 1996]</ref>

==References==

{{reflist|colwidth=30em}}

==External links==