What temperature denotes ultra-pasteurized milk?

Ultra-pasteurized milk is defined by the process it undergoes, which involves heating the milk to a temperature of at least 280°F (138°C) for a minimum of two seconds. This high temperature is important because it effectively kills harmful bacteria and extends the shelf life of the milk without the need for refrigeration until it is opened. This process not only enhances safety by eliminating pathogens but also helps maintain the nutritional quality of the milk.

Understanding the importance of ultra-pasteurization is crucial in food safety and public health. The temperatures associated with ultra-pasteurization are carefully controlled to ensure effectiveness, and any temperature lower than 280°F would not meet the standards required for this method of preservation. In the context of the choices provided, the selection of 280°F as the temperature that defines ultra-pasteurized milk aligns with established definitions and standards used in the dairy industry.