Polar Frost Steel Water Bottle

Looks good and well made using Stainless Steel body with a nice external finish which is easy to hold. Insulation was very good loosing or gaining about 5 degrees Celsius per hour with a temperature difference between inside and outside of 63 degrees and 2.5 degrees per hour with temperature difference of 40 degrees. Test was done with hot water contents at 95 degrees and outside room temperature of 22c measuring rate of cooling. Gives some idea of how it will keep things cold but results could be even better depending on latent heat of melting and thermal capacity of contents. Filled with boiling water a temperature of 63 degrees is reached after 23 hours which shows from a safety point of view you can safety drink the contents containing milk even after just over 1 day assuming the flask is kept at room temperature. UK food safety regs. say can be kept under 63c for less than 2 hours. A drink at 63 degrees is still hot. Very pleased with performance.

At the time of writing this review, the price is £25.99.Love this bottle! It keeps my water cold for hours, doesn’t leak at all, and the minimalist design looks really sleek. The size is perfect for daily use, and it feels sturdy without being too heavy. Great eco-friendly choice.

I just got this water bottle and I absolutely love it! It’s not too heavy, yet the size is perfect. Super convenient to carry around in my bag, whether I’m heading to work or the gym. The color and texture are really nice. Plus, it arrived super fast (in just one day!) and was very well packaged. Overall, such a great bottle!

Perfect size, stylish color, and truly leak-proof. My go-to bottle every day!

Perfect color & size and totally leak-proof! It keeps my water ice cold for hours and the sleek design makes me want to carry it everywhere.”