I'm bringing EBM to a friend of mine this weekend. It will be an 8+ hour drive, and so I want to bring it on dry ice b/c it's already frozen and I don't want to have to worry about it thawing.
My thought was to pack it in a styrofoam cooler w/ dry ice. Does anyone have experience w/ this? Can I expect it to last at least 2-3 days until she can get some additional ice for the trip back home (she lives 4-5 hours away from where we will both be this weekend)?