i can't drink large quantities of water if it is super cold. i do like ice water, but it has to be just a little cool for me to guzzle it all down. i kind of make a game out of it....i fill a two quart jug and i have to drink it all before the end of the day! i also drink a bottle on the way to work and a bottle on the way home...plus a glass here and there at home. sometimes i try to see if i can empty the jug before noon! then i don't have to deal with it anymore!