About Ice Shaker
When filled with ice and left on the counter with the top off, the ice shaker still had ice in it well after 30 hours. This was over six times longer than the plastic bottle we tested. The plastic bottle of similar size ended up leaving a pool of condensation all over the counter after all the ice melted in less than 5 hours. The Ice Shaker still had ice in it after 24 hours in a steaming hot car on a 96 degree day!