Does anyone have experience shipping live cells? I read that this can be done easily by just filling the flask full of media, and that the cells will be fine for 3-4 days. When the arrive, draw off the media and feed with the usual amount of media.
On our first attempt, the cells arrived just fine, but they became contaminated. The cells at home are fine, the other cells at the destination are fine, the media is not contaminated, so I conclude that shipping caused them to be contaminated.
My first thought is to put the flask into an additional sterile container. Maybe wrap the cap in parafilm (though parafilm isn't sterile). Any other thoughts?