Maximise Transit Efficiency: The Power of Liners and Reusable Gel Ice Packs

In the fast-paced sectors of food and pharmaceuticals, maintaining temperature control during product transit is of paramount importance. This holds true for all items, especially perishable foods and temperature-sensitive medicines that demand stringent control measures.

Two key elements in the temperature control process are box liners  and reusable gel ice packs. Far from being mere add-ons, they form the backbone of a complex temperature regulation system. The gel packs not only cool your products but also absorb excess heat, creating an ideal temperature inside the packaging. Working in tandem, liners act like thermal barriers, limiting heat transfer with the outside world.

Together these gel packs and liners form a powerful defence against unwanted temperature shifts, which is crucial to keeping your products in their best condition during transit. They not only ensure your products’ preservation but also enhance customer satisfaction and protect your brand’s reputation, making them a vital business investment.

The Science Behind Gel Ice Packs

Gel ice packs are a common, yet crucial tool in the temperature regulation arsenal. So, what’s the magic behind them? The answer lies in a clever bit of science called ‘latent heat absorption‘. Latent heat, in simple terms, is the heat energy required to change the state of a substance without changing its temperature.

Here’s how the process works with our trusty gel packs: As the gel in the pack starts to melt, it absorbs heat from its surroundings. This is latent heat absorption in action. The gel requires energy (or heat) to change its state from solid to liquid, which it conveniently borrows from the nearby environment, including any product placed close to it.

This heat absorption by the gel pack results in the lowering of the temperature of the surrounding environment. Essentially, the gel pack acts like a heat sponge, soaking up the unwanted warmth from its immediate vicinity and helping to maintain a consistently cool temperature for your products. It’s an elegant and efficient process that ensures your temperature-sensitive goods remain in optimal condition during transport.

Thergis Reusable Gel Ice Pack

Thergis Reusable Gel Ice Packs: An Asset for Professional Product Delivery

Our Thergis gel packs are crafted from a non-toxic polymer that is given the thumbs-up by the FSA and FDA, so they’re safe for use with food. We mix this polymer with water that’s been through a complex cleaning process, including UV sterilisation, to make sure it’s free from anything nasty. 

These gel packs are not just environmentally friendly but also cost-effective. They can be used again and again, making them a clever pick for your delivery needs. Crafted from a durable, top-quality material that stands up to rips and tears, these gel packs weigh less than regular ice and keep things cool for longer. This means your products are always delivered in top notch condition. 

What’s more, our gel packs are designed so you don’t have to worry about leaks or soaking – they’re a clean, hassle-free, and reliable way to keep things chilled. We even offer gel packs personalised with your company logo, helping to promote your brand and improve your service. 

All of these benefits combine to create a smoother, more professional and stress-free delivery experience.




The Role of Liners in Temperature Control and Insulation

While the gel packs are working their wonders, liners are playing an equally important role in regulating temperature and preserving the quality of your products.

So, what exactly are these liners and what do they do? Simply put, liners are insulating layers within your packaging. Their primary role is to act as a barrier that slows down the transfer of heat between the external environment and the goods inside. This barrier retains the cool temperature within the packaging, generated by the gel ice packs, and stops any external heat from creeping in.

To appreciate the insulation process, imagine the liner’s insulating layer as a fortress, staunchly defending against external heat whilst maintaining an inner chill. This is primarily possible because of the liner’s unique capacity to trap air – an outstanding insulator – within its structure. These trapped air pockets establish a ‘buffer zone’ that hinders heat flow, dramatically slowing heat transfer. This successful battle against heat ensures the internal temperature remains at an ideal level, thus guaranteeing your products stay perfectly chilled and secure during their journey.

Harnessing Temperature Control with Thergis Liners

The effectiveness of liners in temperature control lies in their special makeup and structure. At Thergis, we offer three main types of liners: eco paper, poly, and foil liners. Each material brings its unique temperature-regulating benefits to the table.


Thergis Paper Liner

Our eco paper liners, while simple, have a unique property: they’re made of a material that absorbs and releases heat slowly. This trait, known as low thermal conductivity, makes them handy in slowing down heat transfer.


Thergis Poly Liner

Made from polystyrene, our poly liners are one of the best forms of insulation and are great at sealing off your package from the outside world. They act like a watertight barrier, preventing any unwanted external heat from sneaking in.


Thergis Foil LIner

Foil liners are the best type of liner for dealing with heat from light sources, i.e. the sun. Even though foil conducts heat, it’s superb at reflecting radiant heat away. This means it acts as a mirror, bouncing the heat back and stopping it from entering the package.

Each type of box liner, with its distinct properties, forms a formidable shield against heat in its own right, making it an ideal companion for gel ice packs to enhance insulation. 

The Combined Power of Gel Ice Packs and Liners

When it comes to sending temperature-sensitive goods, understanding how reusable gel ice packs and liners work together is key. Both parts are strong on their own, but when they team up, they create the perfect environment for keeping your products safe and cool.

Let’s think about how this teamwork happens: The gel ice pack gets started by soaking up any extra heat inside the package, and this starts the cooling process. The ice pack alone can control the temperature inside pretty well. But, it works even better when it’s paired with the liners. The liners add a strong layer of defence against any heat that wants to sneak in from the outside. So, while the ice pack is cooling things down on the inside, the liner makes sure that no extra heat gets in from the outside.

When these two are working together, they build a great temperature shield. It’s like having the best of both worlds – internal cooling from the ice pack and external protection from the liner. This amazing teamwork ensures a constant, cool temperature for your products, no matter what the weather outside. So, you can be sure your temperature-sensitive goods stay in top condition throughout their journey.

Wrapping It Up: Secure Transit with Thergis’ Thermal Duo

Having observed the collaborative effort of gel packs and liners in temperature control, it’s clear they play a key role in product transit, especially in the food and medicine sectors. They help keep temperatures steady, so items stay in tip-top shape during transit. Liners, acting like thermal shields, stop heat from sneaking in. Gel packs, on the other hand, work as coolers, absorbing extra warmth to ensure an ideal temperature. Together, they provide a strong defence against temperature changes, maintaining the quality and safety of your items. Choosing Thergis’ high-quality reusable gel ice packs and liners means you’re looking after your products, and your customers, the best way possible.

To find out more call our expert team on 0115 931 6969 or contact us for more details.