Reefer containers are nothing but container-sized refrigerators to move goods that need to be maintained at a certain temperature. The flooring of the container has T-shaped decking which sends chilled air into the container. This makes sure there is a consistent airflow among the goods. They can maintain any temperature between -30°C and +30°C.

Reefer containers mostly come in 20-feet equivalent units. They carry temperature-sensitive items such as fruits, vegetables, ice cream, drugs, or meat. Each item has a different temperature requirement and it needs to be maintained to protect its freshness. The reefer container can be sectioned to cool and freeze at the same time. It is powered by a generator that provides electricity. When they’re on the road being transported by trucks, the containers are powered by fuel. The reefer container is expensive considering the power and maintenance requirements.