Goofieslonglostsis, I am afraid your post was so long and complicated there are parts I didn't understand...what is the 1-1-3 rule?
It's the rules about liquids, gels etc in carry ons. This does not just applies to drinks but also to liquid foods (some officers have been known to qualify jam as such, for instance). For more info, take a look at;
http://www.tsa.gov/traveler-information/3-1-1-carry-ons
Also am not trying to be ruse so apologies if this sounds a little off, but I am well aware of what a 16 month old will eat since he is my second child so what he can eat is not the problem.
I think you are reading things that are not in my post, nor suggested. I'm not saying more or less than every youngster has their own preferences and each parent/set of parents can also have their ideas about their childs diet (for instance when they can or can't have candy etc.) No judgement at all, just stating that each menu is different but you as parent will be more than competent enough to find options within the rules that fit both childs taste as your parental views. Read; stick with what you know and fits within rules.
I just get annoyed that it still costs us around £100 for him to fly and for that he gets no luggage allowance or meal! So in essence, what you are saying is that I can't take any foods into Dublin, since there isn't anything that is allowed into the US?
You can bring anything and all into DUB that is allowed under Irish rules. You were asking about the US-preclearance at DUB, right? That is a bit of US territory on DUB airport. Before you just need to adhere to Irish rules, to get through the US pre-clearance you have to adhere to the US rules, just like you would when you would when MCO would have been your first point of entery. So you will go through both TSA and CPB.
As far as the food goes getting through US pre-clearance I am totally saying the opposite;
- you are not allowed to bring OPENED packages of food, so if you open stuff on the first flight you would need to eat it up or throw out as it is not allowed through
- after checks there are no selling points other than perhaps a vending machine with poor expensive options, so by all means if you need to buy anything at DUB do so before going through the checks
- you can take anything with you as long as it fits US food importation rules and is in a closed prepackaging with an ingredient list on it. More info and some ideas of what is allowed;
https://help.cbp.gov/app/answers/de...-bringing-food-into-the-u.s.-for-personal-use
http://cbp.gov/xp/cgov/travel/id_visa/arriving_travelers.xml
As far as luggage allowance; indeed no suitcase, but you are allowed to check one collapsible buggy/stroller for free.