Fun Facts About Reefer Operations: What Data Reveals About the Cold Chain

Reefer containers play a vital role in keeping global supply chains moving. From frozen goods to temperature-sensitive cargo, millions of shipments are transported every year across oceans, continents, and climates.

But behind each journey lies a much bigger story. When looking at reefer operations at scale, patterns begin to emerge that are not visible from individual shipments alone. This article explores a selection of insights based on aggregated data from Sekstant-connected reefer containers in 2025. While the dataset represents only part of the global fleet, it provides a unique window into how reefers operate across distances, temperature zones, and supply chains.

Putting Global Reefer Journeys into Perspective
In 2025, reefers monitored via Sekstant systems travelled an accumulated distance of approximately 16.2 billion kilometers (or approximately 10.1 billion miles).

Written down, it is simply a very large number. But in reality, it represents one year of temperature-controlled cargo moving continuously across the world, linking producers, ports, and end markets through complex supply chains.

To better understand the scale, these distances can be visualized in more familiar terms. What would this look like if compared to journeys beyond Earth? To the Moon, the Sun, Jupiter or even Pluto?

The comparisons are approximate, but they help translate the magnitude into something tangible. Billions of kilometers become relatable when viewed as repeated journeys across space, offering a new way of understanding the sheer scale of reefer operations. For the best mobile experience, turn your device to landscape mode.

Frequency Does not Equal Distance
Another interesting perspective emerges when looking at how different temperature zones behave across the cold chain. Every temperature profile tells two stories:

• How often it appears in operations (its share of records)
• How far it travels (its share of total distance)

At first glance, these two measures might be expected to follow each other closely. However, this is not always the case.

When comparing temperature zones across both dimensions, noticeable differences appear. Frozen and deep-frozen cargo provides a clear example. While it represents a significant share of recorded shipments, it typically accounts for an even larger share of the total distance travelled. This suggests a strong role in long-haul transport compared to other temperature categories. At the same time, other temperature ranges may appear frequently in the data but contribute relatively less to overall distance. These patterns highlight how different segments of the cold chain operate under different conditions and logistics needs.

Seeing the Cold Chain Differently
Looking at reefer operations through aggregated data reveals a more nuanced picture of how goods move globally. It shows that:

• Scale is not just about volume, but about how far cargo travels
• Operational patterns vary significantly across temperature segments
• The cold chain is shaped by both frequent short-haul flows and fewer long-distance movements

Rather than focusing on individual shipments, this broader perspective helps uncover trends that can support better planning, optimization, and understanding of global flows.

From Data to Insight
These types of insights rely on access to connected reefer data across fleets and regions. When operational data is aggregated over time, it becomes possible to move beyond individual shipments and begin to understand the cold chain as a system. This is where patterns start to emerge, and where data can support a more informed view of how reefer operations actually behave at scale.

What Could We Discover Next?
With millions of reefer journeys taking place every year, there is no shortage of stories hidden in the data. Some are expected. Others are not. As access to data continues to grow, so does the opportunity to uncover new perspectives on how the cold chain operates.

What patterns would you look for?
And what might we discover next?

Learn More
Want to learn more about Sekstant and how connected reefer data can support greater visibility across your operations? click here