Pasteurization is a process by which foods are heated to a specific temperature for a specific amount of time to kill (or deactivate) a target number of potentially harmful bacteria. Many different products sold in the supermarket may be pasteurized, including milk, fruit juices, almonds, cider, and beer.
fruit juices, fruit-based drinks, alcoholic beverages, and fermented drinks have temperatures below 100oC are used for a number of acidic products. In these acidic products, the main concern is inactivation of yeasts and molds, and in some cases heat-resistant enzymes. Generally, the shelf life of such refrigerated products is short, typically from 7 to 10 days, although this can be considerably extended if the for either reducing post processing contamination or employing aseptic processing conditions are taken