What should be done with unsealed condiment packets after a customer has used them?

After a customer has used unsealed condiment packets, the correct action is to discard them immediately. This practice is essential to maintain food safety and prevent cross-contamination. Once a condiment packet has been opened and used, its contents are exposed to bacteria and other contaminants from the customer's hands or the environment. Storing these used packets for future use or attempting to rinse and reuse them could lead to foodborne illnesses. Additionally, keeping them for other customers presents the same health risks, as the safety of the condiment cannot be guaranteed after it has been opened. Discarding used condiment packets helps to ensure that all condiments served are safe and hygienic, aligning with proper food safety standards.