What should be done if a customer reports a concern about a food allergen?

Taking a food allergen concern seriously is crucial for ensuring customer safety and satisfaction. When a customer brings up an issue regarding food allergens, it is essential to provide them with accurate information about the ingredients in the food and drinks being offered. This not only helps the customer make an informed decision but also shows that the establishment prioritizes their health and well-being.

Involving a manager is important because they may have additional training or resources to properly address the situation, including knowledge about cross-contamination practices and the necessary steps to take in the kitchen. This collaborative approach reaffirms the establishment's commitment to safety.

The other options fail to adequately address the seriousness of food allergen concerns. Simply informing the customer that it is not a problem undermines their concerns and could lead to potentially harmful situations. Offering a different menu item without understanding the allergen issue could inadvertently lead to cross-contamination. Advising a customer to look up the menu online does not provide the immediate assistance and clarification that they need at that moment. Therefore, the correct response is to take their concern seriously, provide information, and engage a manager to help resolve the situation appropriately.