Fiona_mama, my company has a small single door fridge, but not function well/ not cold. If the Medela ice pack cannot keep for 12 hours, I'll be in trouble...
By the way, do you know whether FTG can keep that long?
Your office got freezer? I tried to use the ice pack for Medela Freestyle. Once reached to office, put it into company freezer and only take out once I pump the 1st bottle of milk. (abt 11am)
Then can last until I went home (abt 8pm).