I have a 2 year old boy and have to travel 12 hours via train can anyone please advise if formula milk is better or amul tetra packs are better in this scenario

A. Tetra track for 200 ML is going to discard the pack and it doesn’t get spoiled also on room temperature because of the package otherwise if you’re willing to use formula then you can go ahead with Similac advance stage four that would be good