we are going to singapore and japan with them in august and my dd will be about 5 mnths by then and they said we were not allowed to take any bottled water on board. plus i dont know how much a 5 mnth old will drink per day-does anyone know? they said i cant bring the whole can-only sachets. also how are you going to sterilise the bottles and how would you wash them, im still trying to work that out....