I need to take a short plane ride in a couple of weeks and drop off my baby who will be 2 months old with my Mum and then go away for work for 24 hours. When I arrive at my Mothers I will only have two days before I leave which won't give me enough time to express enough milk there to feed my Lo for the 24 hours when I'm gone. So I am going to start expressing and freezing breastmilk in advance. The trouble is that I need to transport the frozen breastmilk there, keep it frozen on the trip and then pop it into my Mum's freezer ready to be defrosted a couple of days later when I have to go away. Anybody know how I can transport frozen breastmilk? Thermo flasks?