Packs de glace en gel: Flexible Cold Chain Cooling
What Are Gel Ice Packs, and Why Do They Matter? Gel ice packs are flexible, freezeable pouches filled with a special gel that turns solid when frozen but stays soft and squishy. Unlike rigid ice bricks or messy dry ice, they mold to the shape of your cargo—whether it’s a box of berries, a vaccine cooler, or a chocolate bar—eliminating air gaps that let heat sneak in. Their secret? A thixotropic gel (think “smart slime”) that freezes without becoming rock-hard. This gel absorbs heat as it melts, keeping your goods cold, and resists leaking or bursting—even if dropped or punctured. It’s like having a portable “cooling hug” for your perishables. How Gel Ice Packs Keep Your Goods Fresh Here’s the magic: when you freeze a gel pack, its gel absorbs huge amounts of heat (thanks to its high “latent heat capacity”). When you pack it with your goods, this stored “coolness” slowly releases, keeping temperatures stable. No more melted salads,...
