This bottle works great! The first time I used it, I had just made a batch of sun tea, and when transferring it to the pitcher, went ahead and filled the bottle too. Figured that being in the fridge overnight and the following morning would chill the tea in the bottle. Wrong! The bottle kept that warm tea warm. The bottle did exactly what it was designed to do. Now, I fill the bottle with chilled tea in the morning, it sits on my desk at work till lunch, and I enjoy chilled sun tea without havinSee full review