Why cant fondant once put on the cake go in fridge?

Fondant can go in the fridge once it has been applied to a cake. In fact, chilling a fondant-covered cake can help to set the fondant and make it easier to decorate. However, it is important to note that fondant can become dry and brittle if it is left in the fridge for too long. Therefore, it is best to only refrigerate a fondant-covered cake for a few hours at a time.