Items you will need
Large plastic airtight container
Vacuum sealer or straw
If you are like most couples, you want to follow the tradition of freezing the top layer of your wedding cake in order to eat it on your first anniversary. Freezing the cake is relatively simple, but you have to do it in a way that keeps it fresh for a whole year.
Remove the top layer of cake from the rest of the cake, and remove the cake topper or anything else that isn't edible.
Refrigerate the cake overnight in order to firm up the icing.
Wrap the cake in plastic wrap and make sure the cake is thoroughly covered.
Place the wrapped cake pieces in freezer bags. If you want to be extra safe, you may want to double bag the pieces.
Use a vacuum sealer or even a straw to suck out the excess air from the bags. Any oxygen left in the bag will start to suck moisture from your cake.
Place the bags of cake into the large plastic container.
Place the container in the freezer, and do not disturb for one year.
Keep your cake in a deep freeze or chest-style freezer instead of your every day refrigerator freezer since these will stay colder and are used less frequently.
Cakes with a custard filling aren't recommended for freezing, as the filling can separate.