We often speak of expanded polystyrene (EPS) in terms of construction applications. But the material plays a critical role in the cold chain and food packaging. EPS products ensure food quality and integrity across the entire supply chain. As companies work ever harder to meet the demands for fresh and sustainable food options, EPS’ prominence in the cold chain and food packaging only increases.
Manufacturers can do things with EPS that simply are not possible with alternative materials. Especially in the arena of food packaging, EPS products are superior in their ability to maintain freshness and quality. Without EPS food packaging, the selection and pricing we now enjoy in our supermarkets would not be possible.
Cold Chain Packaging and Temperature Control
EPS products are critical to the cold chain for obvious reasons. Temperature control is non-negotiable for maintaining the quality and safety of perishable goods. Simply put, food products cannot be allowed to spoil during transportation. The same goes for sensitive pharmaceutical products that must be kept at very precise temperatures. EPS provides an efficient solution for both needs.
Superior Thermal Insulation
The hallmark of an EPS product is its superior thermal insulation. The insulating properties come from its closed-cell structure, a structure that reduces heat transfer by trapping air inside. When heat cannot be transferred, more consistent temperatures are maintained.
As an insulator, EPS guarantees that food products and pharmaceuticals remain within precise temperature ranges. But that’s not all. In a typical cold chain scenario, EPS packaging can maintain a stable temperature for longer periods . This reduces the need to constantly run refrigeration systems. Logistics providers save energy as a result.
A Variety of Temperature Ranges
EPS is also highly customizable. This matters for cold chain purposes because different items, particularly perishable foods, must be kept at different temperatures. One EPS product can be engineered to ensure ice cream remains frozen. Another can maintain a temperature slightly above freezing to preserve ready-to-eat meals that are best enjoyed when not frozen solid.
Safety and Compliance Is Never a Problem
Safety is top of mind in the food industry. All materials utilized in the packaging process must be food safe. At the same time, they must be capable of preventing contamination while maintaining product quality. How does EPS handle these requirements? Flawlessly.
EPS is nontoxic and inert. That makes it ideal for food contact. In addition, its characteristics actively prevent contamination from external sources. Even though packages contact various surfaces in different environments, they keep food safe.
From a regulatory standpoint, the FDA and USDA are very strict about food producers maintaining compliance. One of the ways producers do so is utilizing EPS packaging solutions. Some go so far as to utilize customized solutions, like EPS packaging with integrated temperature monitoring systems. EPS is up to the job regardless of the requirements.
Logistics Advantages to Consider
For food producers or pharmaceutical companies, EPS products have value beyond thermal insulation and regulatory compliance. They also offer a number of advantages for logistics. These advantages both increase operational efficiency and save money. In some cases, they streamline processes as well.
Here are three things to consider from a logistics standpoint:
- Minimal Weight – EPS is exceptionally lightweight because of its composition being 98% air. Lighter packaging requires less fuel for transport. And when transportation limits are determined by weight, using EPS allows manufacturers to ship higher volumes.
- Space Efficiency – EPS packaging can be designed around space requirements. It can be produced in custom shapes and sizes that accommodate the products being packaged while minimizing the space requirements in a trailer, plane, or shipping container.
- Loss Prevention – Because EPS resists moisture, protects against physical damage, and limits spoilage, manufacturers experience fewer returns. Logistics planning can focus more on outgoing products and less on product returns.
Logistics is an expensive proposition because of rising fuel costs and constant changes within the transportation industry. But EPS costs less to ship. It is also open to more flexible transportation parameters, giving shippers many ways to save money.
Overall, EPS is more logistics-friendly than nearly every other packaging material. It is the go-to choice for both the cold chain and conventional food packaging. But there is one more factor to consider: sustainability.
Ideal Packaging for a Sustainable Future
When global sustainability first emerged decades ago, EPS was viewed as the enemy. Sustainability proponents thought of the material only in terms of foam coffee cups that were used once and discarded. But a lot has changed in recent years. EPS has undergone a transformation that now makes it fully compatible with modern sustainability goals.
EPS Recyclability
Though it doesn’t get much attention outside of our industry, EPS is highly recyclable. In fact, it can be recycled nearly endlessly if the right processes are utilized. Best of all, recycling facilities are beginning to invest in the equipment and processes necessary to turn used EPS into new products.
Companies that rely on EPS for packaging are also finding they have greater access to local recycling programs. Taking advantage of such programs helps companies limit their own environmental footprints by transforming what was formerly a waste product into a feedstock for new manufacturing.
Choosing EPS over other food packaging materials now aligns with modern sustainability initiatives. From our perspective, the goal is to engineer EPS products that have a limited environmental impact. In so doing, we can help our customers pursue sustainability. We can help them adopt EPS for both functional and sustainability purposes.
Better Packaging for Today and Tomorrow
Thanks to its superior thermal insulation, lightweight nature, and sustainability, EPS represents better packaging for both today and tomorrow. It is the ideal material for cold chain and food packaging needs. If you have not yet investigated its viability as a replacement for your current packaging system, it is time to change that. It is time to take a serious look at how EPS could transform your business.
FAQs
What is EPS, exactly?
EPS is a lightweight but rigid foam offering superior insulation properties. It is widely used in food packaging because of its ability to protect against spoilage and contamination.
How does EPS benefit cold chain logistics?
Its greatest advantage for cold chain applications is its ability to maintain consistent temperatures over long periods of time. Temperature stability reduces the need for external cooling during transport.
Is EPS food safe?
Yes. Because EPS is nontoxic and inert, it complies with all regulations pertaining to food contact.
Can EPS packaging be customized for different products?
Absolutely. EPS can be formed into a variety of shapes and sizes to meet just about any need. It can also be formulated to maintain a specific range of temperatures.
How does EPS prevent food spoilage?
EPS resists moisture and prevents heat transfer, the two most important contributors to spoilage. EPS is also resistant to physical damage. It keeps out contaminants that could encourage spoilage as well.