Originally Posted by rjque

Tap water is fine - it's what we use ourselves to make our baby's formula. It's the airplane tank water that can't be trusted. Perhaps cleaning schedules have changed in the past 10 years, but there have been numerous articles on the unhealful levels of fecal coliform, ecoli and other nasty bugs in airplane tank water. Here's one example:

http://www.flyertalk.com/forum/trave...gest-fter.html

These bugs are not killed when the airline heats the water for things like coffee, so I just avoid anything made with tank water. I certainly would not use airline tank water to make a baby bottle, given the extreme danger ecoli presents to infants.