Not being faceatious, but I make all my own baby food and heat it up and transport it in a food thermos. We are flying to the US (if I get my leave) the second week of october will I have any problems? Also I carry a water bottle for the baby too, will I have to get rid of that too because it's not classed as "food or milk?"
Interesting point about the water bottle, if the answer is no they can't really confiscate a baby's bottle can they ? In the end it may come down to whether the indidvidual security officer has kids himself, people with kids always being more understanding of other people with kids.
Probably an idea to take a spare, empty bottle that can filled on the aircraft, if necessary.