I just didn’t want to have to take litre size ones and not have a fridge to out it in when I’d only need 6-9 oz at a time that why I’m going for the small size oat milks. Boiling water flask, I’d need to buy one of these.
We just ordered the full size growing up milk into boots at the airport after security so it didn’t count towards hand luggage. We were a short flight and oat milk is far less perishable than cows milk so we were fine and had a fridge in the hotel to store for after we arrived. Baby will be fine with a other brand though as long as it’s fortified xx
You don’t need to worry about the ml limit if that’s your concern. The 100ml liquid limit doesn’t apply to baby’s stuff as it’s medically exempt. I would travel with 2/4 flasks of boiling water, calpol, puree pouches etc