Final answer:
The minimum required temperature for the final sanitizing rinse in a high-temperature dishwasher is 160°F (71°C). The correct answer is option a).
Step-by-step explanation:
The minimum water temperature of the final sanitizing rinse in a high-temperature mechanical dishwasher must be at least 160°F (71°C). This temperature is enough to kill most microbes, including bacteria, which can be present on dishes and utensils. By reaching this high temperature, the dishwasher ensures that dishes are properly sanitized and safe for use.
It is important to use a thermometer to verify that a high enough temperature is achieved to ensure proper sanitation. Sanitization is crucial, especially in the food service industry, to maintain hygiene and prevent the spread of diseases.
In comparison, autoclaves used for sterilization in healthcare settings operate at higher temperatures, typically around 121°C to 132°C, to ensure the destruction of even more resistant bacterial endospores.