This is the time of year when temperatures across the country widely vary. Higher elevations are already snow-covered while areas of the East Coast can still be in the eighty-degree range like they were just a week ago.
For any given cross-country shipment, the ambient temperature outside the trailer during the spring and fall months can go through multiple changes along the route. If the reefer unit has not been regularly serviced or the trailer is in disrepair with leaks or holes, the safety of the cargo may be in jeopardy.
It is during these months of unpredictable weather swings that shippers with temperature-controlled freight need to pay close attention to best practices and use extra vigilance in maintaining their cold chain.