Which of the following actions is NOT a way to prevent chemical hazards?

Mixing sanitizers with food poses a significant risk and is recognized as a dangerous practice in food safety. This action can lead to the contamination of food items with harmful chemicals, which can cause severe health issues for consumers. Sanitizers and other cleaning agents are not intended for human consumption and can leave harmful residues that may not be removed through cooking or washing.

In contrast, the other actions listed are important preventive measures against chemical hazards. For example, separating cleaning agents from food prevents cross-contamination, using food-grade chemicals ensures that the substances used are safe for food contact, and labeling chemical containers helps to avoid misuse or accidental ingestion. Each of these practices contributes to a safer food handling environment by minimizing the risk of chemical exposure to food products.