I just bought this and my ice did not melt at all even the next day. I do wish the cap was connected though. Might lose it someday. I have the 16oz and 36oz.
@@laurabos661 Their reasoning which is stated on the internal instructions that come in the bottle is that with the large opening you can scald yourself if the liquid is very hot. So it can hold hot liquids but the issue is the high flow rate of the larger opening.
