An imminent health hazard (IHH) is a condition that greatly increases the chances of illness or injury to both the workers and the customers of a food establishment. Common examples of an IHH include: Fire, flooding, loss of pressurized water, loss of hot water, loss of power, broken refrigeration, floor drains backing-up/or unable to drain, pest infestation, unsanitary conditions; or, the onset of a suspected foodborne illness outbreak. Think of an emergency or a utility outage as an IHH. An IHH creates an unsafe environment for food preparation or service.