A food safety inspection on Wednesday found the floor of a kitchen storeroom at Beijing Haichunge catering company, about 500 meters from the Beijing No 4 High School in Xicheng district, had partially collapsed, posing a potential danger to kitchen workers. 

The inspection is part of a citywide campaign by the Beijing Food and Drug Administration that aims to ensure the safety of food for students in the fall semester and the safety of those preparing it.

School canteens as well as restaurants and supermarkets close to schools are the main targets.

Haichunge was ordered rectify the problem ahead of another inspection on Friday.

The canteen at Beijing No 4 High School and the nearby Sun Market were also inspected, with no irregularities found.

The sanitary state of kitchens and canteens - such as tableware disinfection and the preservation of cold dishes - is a focus of the inspection. 

The monthlong examination started on Monday and will finish on Sept 28, the administration said.