Answer :
Final answer:
Food workers can use test strips, black light, and a calibrated thermometer to check if a sanitizing solution was prepared correctly.
Explanation:
Food workers can tell if a sanitizing solution was prepared correctly by using a test strip specifically designed to check the concentration of the solution. These test strips change color based on the solution's pH level, indicating if the correct concentration has been achieved.
Another method is to shine a black light on the solution, which can sometimes help detect certain contaminants or substances that should not be present if the solution was prepared accurately.
Additionally, food workers can calibrate a thermometer to ensure the sanitizing solution has reached the required temperature for effective sanitization, as indicated in food safety guidelines.
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