Hurricane Season Preparation for the Shipping Industry
Temperature-controlled shipping has come a long way over the past 100 years. What once consisted of stuffing a container full of ice blocks to move meat from the stockyards of Chicago has transformed into a highly complex system of advanced technology. While those early days kept food from spoiling, the modern cold supply chain uses equipment that can control the temperature inside of a reefer or frozen container within one-tenth of a degree for hundreds of miles.
Every day, the cold supply chain in the United States moves more than hundreds of thousands of containers equipped with temperature-controlled shipping technology. This keeps refrigerated or frozen goods safe from exposure to heat or falling outside of the ‘danger zone’ of bacteria growth. To ensure our food remains safe and free of contamination – the cold supply chain relies on more than fancy equipment. In fact, of all supply chain movement industries, temperature-controlled shipping is the most complex.
Let’s take some time to dive into a few of the detailed system of checks and balances that keep our cold storage shipments running smooth, our commodities protected and moving smooth across the globe each day.
Temperature Controlled Shipping Involves Additional Planning, Loading, and Movement Steps
Routing a dry-goods shipment is a fairly simple process. The shipper finds a carrier, the carrier plans the route, the driver or warehouse staff load the container, the driver moves the product and delivers to a customer. Now imagine adding several individual steps at each stage. When products require temperature controls like reefer or frozen shipments, the cold supply chain introduces multiple additional steps in every phase of shipping.
Here are a few of the ways that the cold supply chain is different.
Planning
When a temperature-controlled shipment is planned, shippers, carriers, and recipients must work together to ensure a smooth movement and delivery of the commodities. While it’s relatively simple to verify that all supply chain partners have the right equipment in the continental US, shipping internationally introduces a whole new list of potential problems. Regardless of the point of delivery, carriers must ensure their shipments are planned to comply with food safety standards, which reduces the growth of bacteria, limits spoilage, and ensures the product is delivered on time.
Loading
Temperature-controlled shipping is completed in specialized containers that are usually designed for either refrigerated or frozen shipping. Shippers need to verify that their shipments are being loaded into the right containers associated with their type of shipment. Products shipped via this method also require unique stacking and off-loading procedures to be followed.
Movement of Freight
When you ship via temperature-controlled storage, the margin of error is reduced. While today’s cold storage cargo containers are made exceptionally well, the refrigeration equipment requires a constant supply of power to maintain a specific temperature. This throws a restriction in the movement of products. Cold storage shipments require routing that will ensure the container is powered while the truck is not in operation. This usually requires a storage depot or external power source. Additionally, shippers and carriers also need to work closely with the recipient to ensure they are available for deliveries to reduce shipping delays.
Additional Paperwork Control
Cold or frozen shipping also requires additional documentation in order to comply with multiple Federal shipping and FDA regulations. The Food Safety Modernization Act created by the FDA provides shippers and carriers with controls that are required for the safe movement of cold-storage food. The Department of Transportation also requires carriers to maintain temperature control logs to document the temperature of their cargo containers—in most cases every hour. In the case that a carrier is pulled over or stopped at a weight facility and does not have their temperature log correctly filled, it can result in shipping delays, multiple fines, and possible commercial shipping license suspension.
Final Thoughts
Moving commodities that require temperature-controlled shipping has become much more complex than in years past. The main issue most shippers deal with is understanding the excessive regulations and paperwork control involved in this segment. If you’re a shipper who wants to learn more about how to successfully navigate the cold supply chain, a professional and experienced 4PL like Redwood Logistics can help improve your cold supply operations.
FAQs
Why is temperature-controlled shipping more complex than regular freight shipping?
Temperature-controlled shipping is more complex because every stage of the move requires extra coordination, not just transportation. Shippers, carriers, and recipients must align on planning, loading, power supply, delivery timing, and regulatory paperwork. Unlike dry freight, cold shipments can be delayed or compromised if the container loses power, is loaded incorrectly, or lacks proper temperature documentation.
What paperwork is required for temperature-controlled shipping?
Temperature-controlled shipping requires more documentation to stay compliant with federal shipping rules and FDA requirements. The article specifically notes that the Food Safety Modernization Act sets controls for safe cold-storage food movement, and the Department of Transportation requires temperature control logs, often recorded hourly. Missing or incomplete logs can lead to delays, fines, or license suspension.
How do carriers keep refrigerated or frozen shipments from spoiling during transit?
Carriers keep refrigerated and frozen shipments from spoiling by using specialized containers that maintain a controlled temperature throughout the move. These containers need constant power, so routing must account for places where the unit can stay powered when the truck is stopped. Shippers also need to coordinate delivery timing to reduce exposure and delays.
What happens if a temperature log is missing or incorrect during a cold shipment?
If a temperature log is missing or filled out incorrectly, the shipment can face delays, fines, and possible commercial shipping license suspension. The article says carriers may be stopped at a weigh facility or roadside, and incomplete documentation can create compliance problems even if the cargo itself is still cold. Accurate logging is part of keeping the shipment moving smoothly.
What is the difference between loading dry freight and loading temperature-controlled freight?
Loading temperature-controlled freight requires more care than loading dry freight because the product must go into the correct refrigerated or frozen container and follow special stacking and off-loading procedures. The wrong container or poor loading method can affect temperature stability and product safety. Dry freight, by comparison, usually follows a much simpler load-and-move process.
Why does temperature-controlled shipping require tighter delivery coordination?
Temperature-controlled shipping requires tighter delivery coordination because the container must stay powered and the receiver must be ready when the shipment arrives. If the delivery window is missed, the freight may sit without the right support, increasing the risk of spoilage or delay. Planning with the carrier and recipient helps keep the shipment on time and within safe temperature limits.
How has temperature-controlled shipping changed over time?
Temperature-controlled shipping has evolved from using simple ice blocks to move meat into a highly technical cold chain system. Modern reefer and frozen containers can control temperature within one-tenth of a degree over long distances. That improvement has made food transport safer, but it has also added more planning, monitoring, and compliance requirements.
