Answer :
The person in charge should make sure that before entering the prep area all the food handlers are wearing clean uniforms and have hair restrained.
Who is a food handler?
Anyone who works in the food industry and handles food or touches objects that are likely to come into contact with food, such as silverware, plates, and bowls, is referred to as a food handler.
Food handlers must be trained properly in food hygiene practices by law in order to assist avoid food poisoning before it reaches the consumer.
Hence, to avoid food contamination food handlers should wear clean uniforms and have their hair restrained.
To learn more about food handlers, refer to the link:
https://brainly.com/question/7963733