Final answer:
The correct temperature for a high-temperature dishwasher rinse cycle is at least 82°C to effectively sanitize the dishes by killing bacteria and ensuring safety for use.
Step-by-step explanation:
The temperature of the rinse cycle of a high-temperature dishwasher must reach at least 82°C and run for at least 10 seconds unless otherwise stated in the manufacturer's instructions. This high temperature is necessary to ensure the effective sanitization of dishes, killing bacteria and ensuring that they are safe for use. This is similar to how bacteria in food can be killed by heating it to a high temperature, typically at least 74°C or 165°F. By reaching 82°C, the dishwasher is able to neutralize potentially harmful microorganisms that might be present on the dishes.