Question

What happens when the water temp. in a high-temp. dishwashing machine is too high?

a. spray nozzles become clogged
b. items are sanitized for too long
c. detergent is left on dishes and utensils
d. the water vaporizes before items can sanitized

Answer 1

The correct answer is that high water temperature in a dishwashing machine may result in detergent being left on dishes and utensils, as the detergent's rinsing efficacy decreases and anti-foaming agents become less effective.

Step-by-step explanation:

When the water temperature in a high-temperature dishwashing machine is too high, the detergent does not rinse off completely and can get left on dishes and utensils. High water temperatures can cause the dishwashing detergent to be less effective at rinsing away, as higher temperatures can lead to the formation of a layer of foam that inhibits the cleaning action. This is exacerbated by the anti-foaming agents in the detergent, which are not as effective at very high temperatures. Moreover, the solubility of gases decreases with increasing temperature, resulting in less-efficient dissolution of detergent and potentially harming the machine.

Additionally, high temperatures can cause damage to certain materials such as plastics, fine glassware, and items with metallic decorations that are not intended to withstand such conditions.