What is advised to do to control pests like cockroaches and rats?

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To effectively control pests such as cockroaches and rats, maintaining a clean environment is essential. A clean area minimizes access to food, water, and shelter, which are key attractants for pests. By regularly sanitizing surfaces, promptly cleaning up spills, and ensuring that food is stored properly, the likelihood of a pest infestation can be significantly reduced. This preventative measure creates an inhospitable environment for pests, making it less likely for them to establish themselves in food preparation and storage areas.

The other options highlight practices that would either exacerbate pest problems or are unsafe in food handling environments. For instance, leaving food uncovered or using chemicals around food can lead to contamination and create health risks. Ignoring the presence of pests only allows the problem to grow, potentially leading to larger infestations and serious health and safety violations. Thus, keeping areas clean stands out as the most effective and responsible approach to pest control in food handling settings.