When the reefer container arrives at the port of loading, the temperature setting, return air temperature and vent setting should be checked against the booking information supplied by the shipping line and the trucker's paperwork.

The container yard personnel should inform the shipping line if the temperature displayed on an operating refrigerated container is not decreasing to the shipper specified thermostat setting in a reasonable period of time. 

In some instances, refrigerated containers are not operating when received at the container yard due to insufficient fuel or a decision not to use motor generator sets for short stays. When a non-operating refrigerated container is encountered, the container should be connected to a source of electrical power as soon as possible.

The performance of the operating refrigerated containers should be monitored closely to assure they are maintaining the temperature at or about the shipper specified thermostat setting.

Guidelines for Receiving Frozen Cargo

The generally recommended upper pulp temperature limit for accepting frozen cargo is -9.4C (+15F). The importance of holding frozen cargo below -9.4C (+15F) is that food spoilage organisms cease to grow.

When the terminal or shipping line becomes aware of a frozen cargo container running at or above this limit for an extended period of time, the shipper should be informed and arrangements made to inspect the cargo by a qualified surveyor.