Certified Dietary Manager (CDM) Practice Exam

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What does Ultra-Pasturized refer to in terms of food processing?

Heating at a lower temperature for a longer time
Heating to a higher temperature for a shorter time
Freezing food to preserve nutrients
Cooking food at high altitude

The correct answer is: Heating to a higher temperature for a shorter time

Ultra-pasteurization refers to the process of heating food, typically dairy products, to a higher temperature than traditional pasteurization for a very short time. This method effectively destroys harmful bacteria and extends the shelf life of the product without the need for refrigeration until the package is opened. By rapidly heating to temperatures above 280°F (138°C) for at least 2 seconds, ultra-pasteurization significantly reduces the microbial load, making the food safer and allowing it to be stored at room temperature for extended periods. This technique preserves the quality of the food while ensuring it remains safe for consumption, distinguishing it from other preservation methods like freezing.