Question

moving to another question will save this response. question 18 what is the main reason for food handlers to avoid scratching their scalps? transferring a food allergen spreading pathogens to the food getting food in their hair causing toxic - metal poisoning

Explanation:

Scratching the scalp can transfer pathogens (such as bacteria, viruses, or fungi) from the scalp to the hands. If food handlers then touch food without proper hand - washing, these pathogens can be spread to the food, which can cause foodborne illnesses. Food allergens are not typically transferred by scratching the scalp. Getting food in the hair is a minor aesthetic issue compared to pathogen spread. Toxic - metal poisoning is usually related to contact with contaminated equipment or chemicals, not scalp - scratching.

Answer:

Spreading pathogens to the food