What symbol indicates that a food is allergen-free?

The symbol that indicates a food product is allergen-free is typically an allergen-free certification label. This label is specifically designed to communicate that the product has undergone thorough testing and meets the stringent criteria set by certifying organizations to ensure it does not contain specific allergens. Such certification provides assurance to consumers, particularly those with food allergies, that the food has been prepared in a way that avoids cross-contamination and includes no trace of allergenic ingredients.

Other symbols, such as a green checkmark or a red cross, do not universally signify allergen-free status and may have different meanings in various contexts. A QR code could provide additional information about the product, but it does not inherently indicate whether the food is allergen-free. The allergen-free certification label is the most recognized and reliable indicator in labeling and food safety practices.