This bottle is so efficient that I bought a second one! I use one for hot or home-brewed ice-tea, and one for hot coffee. While the bottles are not a big deal to clean,
the bottle for coffee is best left for that beverage solely. The Atlas bottle keeps iced drinks really cold, and hot beverages very hot! I wish the bottle were not as heavy, but I realize that the protective layers of insulation, as well as the high quality of the bottle, dictate the weight.