Containers and utensils shall be inverted, covered, or otherwise protected from contamination until used. All single-service drinking straws and containers shall be discarded immediately after use.

All utensils shall be thoroughly cleaned and sanitized after each usage. All food and non-food contact surfaces of equipment and all food storage utensils shall be thoroughly cleaned and sanitized daily.

Toilet rooms shall be completely enclosed and shall be vented to the outside air or mechanically ventilated. None of the operations connected with food establishments shall be conducted in any room used as living or sleeping quarters.

The flow of air discharged from kitchen fans shall always be through a duct to a point above the roofline. All plumbing fixtures, such as toilets, sinks, washbasins, etc., must be adequately trapped, vented, and re-vented and properly connected to the sewer in accordance with the plumbing chapter of the Municipal Code of Chicago and the Rules and Regulations of the Board of Health.