Final answer:
To prevent infestation and ensure thorough cleaning of an establishment, it is important to clean and sanitize all areas regularly, extending beyond visible areas. Strong chemical pesticides are not sufficient on their own to prevent infestation and can have harmful effects. Regular cleaning, sanitizing, and appropriate pest control measures should be used.
Step-by-step explanation:
To clean the establishment thoroughly and prevent infestation, it is important to clean and sanitize all areas regularly. Daily cleaning is necessary, but it should extend beyond visible areas to include hidden or hard-to-reach places that can harbor pests. Using strong chemical pesticides alone is not sufficient as it may have harmful effects on human health and the environment. Therefore, a combination of regular cleaning, sanitizing, and appropriate pest control measures is the best approach to maintain a clean and pest-free establishment.