What thermometer is best suited to be checking a dishwashing machine's final rise temperature?

The best choice for checking a dishwashing machine's final rise temperature is the maximum registering thermometer. This type of thermometer is specifically designed to record the highest temperature reached during a specific process, which is essential when sanitizing dishes in a commercial dishwashing machine.

In a dishwashing machine, the final rise temperature is crucial for ensuring that dishes are sanitized effectively. The maximum registering thermometer can be left in the machine during the wash cycle and will indicate the peak temperature at which the dishes were exposed. This ensures that the temperature has reached the necessary level for effective sanitation.

While digital thermometers provide accurate temperature readings, they do not retain information about the maximum temperature reached unless they are designed with a hold feature. Infrared thermometers measure surface temperatures and are not suitable for assessing the temperature of water or the effectiveness of a dishwashing machine's sanitization process. Alcohol thermometers, though functional, are not commonly used in commercial settings due to their fragility and narrower temperature range compared to maximum registering thermometers.

Thus, the maximum registering thermometer stands out as the most appropriate tool for ensuring that a dishwashing machine is functioning at optimal sanitization temperatures.