A fly infestation poses a serious hygiene risk. Unfortunately, flies are attracted to conditions found in restaurants, where they can do the most damage. Flies are known to carry numerous diseases, including tuberculosis, typhoid and cholera. Flies feed on decaying organic waste, and then transfer pathogens from their feet to human food and food preparation surfaces.
Sanitation is crucial in preventing flies from infesting a restaurant kitchen. Keep trash pails, drains and drain traps clean. Counter spaces and chopping blocks should be wiped down regularly. All food should remain refrigerated when it is not being used. Keep doors and windows closed as much as possible to prevent fly entry. Screening vents, doors and windows may also help to prevent fly infestations. Sometimes large fans, called "air curtains" are effective at keeping flies out of restaurants.