Estimated reading time: 2 minutes
Perishable products are among the highest consumed goods in America today. Some of the most consumed or used perishable products in the U.S. include:
- Fruit and vegetable produce.
- Dairy products.
- Meat and poultry.
- Seafood products.
These products are all categorized as “reefer freight” and the main characteristic of these products is that they spoil quickly. To combat this problem, truck drivers use transportation equipment called “reefer trailers” to help haul perishable products.
But what does "reefer" stand for?
What is a reefer trailer?
A refrigerated or “reefer” trailer is a heavily insulated and tightly sealed container that has a Trailer Refrigeration Unit (TRU) mounted on the outside of the front wall, to control the temperature inside the trailer.
The main purpose of a reefer trailer is to maintain the temperature of freight at the time it is loaded. It is not used to increase or decrease the temperature of the freight during transportation.
For example, ice cream is loaded frozen and the TRU keeps it frozen during transportation so that it is still frozen when it arrives at its destination.
Regulating a trailer’s temperature in this way helps maintain the quality and prolong the shelf life of the freight being hauled.
How does a reefer trailer work?
Reefer trailers are the same size as an average semi-trailer, meaning that they are essentially 53-foot-long refrigerators on wheels. As you can imagine, reefer trailers rely on a some powerful technology to refrigerate that large of a space for such a long period of time.