What is the purpose of a clock with a second hand at a three-compartment sink?

A clock with a second hand at a three-compartment sink serves an important function in ensuring proper sanitation of dishware and utensils. The primary purpose is to time how long items have been submerged in the sanitizer solution. This timing is crucial because sanitization requires a specific contact time to effectively reduce the number of harmful microorganisms.

Using a clock enables staff to accurately monitor this contact time, ensuring that items are left in the sanitizer for the recommended duration, thereby achieving the desired level of disinfection. This practice helps maintain food safety standards and minimizes the risk of foodborne illnesses.

The other options, while related to food safety and operational efficiency, do not pertain directly to the primary function of the clock at the three-compartment sink. Monitoring cooking times, indicating detergent changes, or managing employee breaks are not functions associated with ensuring the sanitization process is carried out effectively. Thus, the focus on timing the sanitization process highlights the critical role it plays in maintaining a safe food handling environment.