For my older 2 kids I never really pumped at work for different reasons but managed to maintain a decent supply since I was nursing in thr evenings and at night. This time I plan to pump at work.we have a dedicated mothers room with fridge, sink etc. My commute can sometimes take 45 mins to an hour and I am worried about the milk temp in transit, even with the icepacks. I wonder if I should freeze the milk immediately after pumping at work ? What do you do?