Importing green beans matters to bring great quality to the cup. But the beans travel from their native mountains in the Green Belt to various climates. What packaging is best when transporting to a temperate climate ("real seasons", a bit of everything, from sun to rain to snow, and negative to positive temperatures).
Packaging could be with traditional hemp bags, with plastic bags, with bacteria-protecting bags, etc. I heard some stories of hemp-packed beans contaminated by animals when transporting by boat. In the past, I have imported hundreds kilos by plane in regulated atmosphere, for best quality, but it may be overdoing it (the beans where quite expensive). All in all, I guess it depends on the kind of beans and transportation.