The rind on the brie is perfectly edible and helps to hold the shape of the cheese when baking, but the top rind can be removed if you prefer. Freeze the brie for 20 minutes, then stand it on its side and use a serrated knife to slice off the top and bottom. I suggest using a larger brie if you want to remove the rind. Alternatively, use a cheese slicer to scrape off the rind.