Hi Karen – When I sliced the cake and covered it I did put it back in the fridge as an experiment. I had read varying opinions on covering the cake with a towel or in a cake box etc before placing in the fridge. So I placed a cut slice in a Tupperware container and also under some cling film with the same result – sticky icings. Once I put them back in the fridge uncovered for a while the fondant started to dry out again. So I placed some cling film on the cut cake surface only and stored the left overs in the fridge until eaten, which wasn’t very long, it was very delicious according to all! When I was originally placing the fondant on the cake it started to go a bit sticky as it was a warm day and putting it in the fridge dried it out. I would not like to eat a cake with ganache or buttercream for that matter that had not been in the fridge in our climate! I will certainly be putting mine in the fridge again, next week in fact. The first cake was an iPod cake for my son and I have another to bake for the party that could not be held on the same day!! I am just a home cook. The more professional bakers with cool rooms or air conditioned rooms wouldn’t have the same issues. Cupadeecakes also puts hers in the fridge and like she says the condensation does dry out after a while. I put mine under a fan for a while which speeds the drying process up. I have heard it can also depend on the make of fondant you use too. I used black for the iPod cake which can be extra tricky. I have frozen a few pieces as another experiment. Have read lots of yes you cans & no you can’t on that one too. Will let you know how the results of that! Hope that helps!