Originally Posted by
CDTraveler
Which two situations are you comparing? A thermos from home and a plane's water tanks?
Do a search on FT for info on water safety on planes, there was a actually a research project on the subject done by the son of a FT member that has been posted/referenced many times on FT.
I suspect the two situations were a) water from the plane and b) water from a coffee shop in the sterile area (and here "sterile" doesn't refer to the water!).