❄️ Polar Tech Re-Freez R-Brix Refrigerant: Optimal Length for Lab & Scientific Products Review

I am so thrilled and must leave a great review. I USPS sent my brother a few items from the fridge including a Delmonico steak. I used a regular cardboard box, then folded the insulating bags (silver) in half, then put these two frozen baddies in a plastic bag, and then put them in the bottom of my insulating bags. I added my cold food, folded the insulating bag and sealed it with tape, then folded the third insulating bag over the other two to make sure it was sealed at the top. I posted this…

I live in Alaska and wanted to ship fresh salmon to a family member who lives in a small town on the other side of the United States. Shipping is already very expensive, I didn't want to risk the extra cost of handling dry ice. I chose these ice packs based on the reviews and the fact that they always give us some sort of option when buying frozen items online. When I went to pay for overnight delivery, to my dismay the post office informed me that there was no overnight delivery to this small…

I first met them when I received one of these bricks along with an online grocery delivery. Did such a great job of keeping the temperatures down that I've been looking for more products. Sooooo glad I did - they came in VERY handy when my fridge broke recently and I had to put everything in the fridge for over a week. Even with frequent opening of refrigerators, these brixes remained frozen and kept cold. Compared to several other refrigerators used at the same time, they showed the best…