Cooler Shock has updated and improved our cooler ice packs with a thicker, stronger outer layer. We’ve been delivering this in the screw cap version for several months. The zipper type in both sizes just begin delivery in July. This should be a meaningful improvement in longevity. Although many use our ice packs for years, those that use it daily and find it sliding around their cooler as they transport them, may experience wear that leads to pin holes. We hope to give the packs greater tolerance with the new design. As a reminder, it’s easy to fix any hole with some packing tape or Gorilla brand clear tape.
Our cooler ice packs work well for 2 reasons, one is the formulation and the other is the bag it comes in. The Cooler Shock ice pack bag has 5 layers including aluminum (not Mylar) and Nylon. It is designed to allow energy to transfer rapidly. Other cooler ice packs often have a hard plastic shell which makes them more durable. The problem is that you are giving up the primary goal of keeping things cold for the durability. In our view it’s like making tires out of metal to get them to last longer. They will last longer but you will not get what you need out of a tire, the ability to stop and steer.
That said, we want you to be happy with the durability of our product as well. Please check our webpage on care and maintenance https://coolershock.com/care–maintenance.html to get the best longevity out of our ice packs. Here are a couple of basic pointers….try not to toss them especially when soft or cause them to crush up into a corner. This will stress the lamination of the 5 layers over time.
Keep in mind that a cooler ice pack releases energy from both sides. If you put an ice pack against the side of a cooler (yes very common) you are insulating one side from releasing energy and you are also pushing good energy out of the side of the cooler. Placing the ice packs amongst your food and beverages gives the very best result.
Finally, contact us if you have any issues with your packs durability so we can make you happy again. Thank you for the great reviews and for your purchase. Chris Aliberti, Co-Founder
Lately we have been getting a lot of questions about traveling by air with ice packs.
Here’s the skinny…
You can bring Cooler Shock packs through security as long as they are frozen, no issues. (You can get details at TSA.Gov)
If the packs are defrosted they will not let you take them on the plane. Consider checking ahead at your hotel or other destination to be sure you can re-freeze the packs to take them home.
Of course you can transport the dry packs if they have not been hydrated yet. The CS packs should stay frozen all day if you take them to the airport in a cooler.
We’ve had a lot of questions related to this and the transportation of breast milk. It seems that we’ve been mentioned somewhere on a website regarding the great success one Mom had using CS for this purpose. If you have specific need please check our chart for usage on our main web page or contact us for specific details.
Cooler Shock ice packs absorb heat from both sides. Understanding that, consider allowing both sides to work for you for best performance. If you place the pack directly on the bottom or in direct flush contact with the sides of a cooler, you are using the ice pack to absorb heat through the cooler wall and then from the outside. Said another way, you are cooling the wall of the cooler and the outside. For many on a one day trip this is probably irrelevant. For those that want the most out of the pack, place it so that it is not in direct contact with the floor or sides of the cooler. You can do this by placing beverages under it or use basic bubble wrap to create an airspace.
For those taking multiple packs for multi-day use, stack the packs (still using something to keep the bottom pack off the floor of the cooler (bubble wrap again). As the upper packs give off their energy, remove them and expose the next pack. By doing this you are using the upper packs as insulators for the lower packs thereby not allowing them to all cool at once.
Conversely, when freezing your packs, create air space in between them when placing them in the freezer to get the highest energy absorption in the shortest amount of time. One way is to spread them out on different shelves.
Yes, there is a science to this and you will have a much better experience when armed with knowledge.