First, I apologize if this question has been asked a million times. I looked for an answer before posting and could not locate anything.

I have made a couple of MMF covered cakes. All goes well until they are completed. I place them in an open top cardboard box and cover with plastic wrap. After a little while the fondant becomes "wet" (for lack of a better term). It gets sticky and shiney looking. Is plastic wrap on top bad? Is it keeping in too much condensation? If I leave the plastic wrap off, will the fondant become too hard to eat?

Any advice is appreciated

Your fondant will stay nice and soft for several days, you don't need to cover it. Once the cake has been cut you want to put a dome on it or put it in a cake box to help the cake stay moist but your fondant will be fine. When you are covering it with plastic wrap you are creating a wonderful environment for humidity..thus shiny sticky fondant. So go ahead and put it in the cake box but don't seal with plastic wrap.

Cat