Does anybody have experience in overseas travel and transporting starter? We've been living in Guantanamo Bay, Cuba for the past year and will be returning to the States in a week. I have a sourdough starter that I made while living here, and I would really like to bring some back home with me. We have two days of air travel in order to get home and the starter is being refrigerated now. I'd appreciate any suggestions on I might get this starter back home with me!