I often have 500ml bottles of water freeze in my truck but have noticed a problem. After the water thaws there is a very small amount of white, cloudy sediment in the bottom of the bottle, I do not know if this is something seperating out from the water or if it is from the plastic bottle. Does anyone have an idea of what this stuff is?
Mike
I too have noticed that white sediment when I've frozen bottled water in the clear plastic PETE bottles, particularly if I've frozen, thawed, re-frozen, and re-thawed. I doesn't go away when re-heated in my experience. I haven't seen that white sediment when I use one of my Nalgene bottles. I've had good luck with freezing water in my Nalgene bottles when I fill them maybe 3/4 full and then placing them on their side in the freezer.