Why do you turn an angel food cake upside down?
Its rise is created by the egg whites and until it cools, its structure is not set. Allowing it to cool upside down ensures it doesn’t collapse. Many angel food cake pans come with feet around the edges for this very purpose.
How long should you leave cake in pan after baking?
When a cake is freshly baked, it needs time to set. Keep the cake in its pan and let it cool on a rack for the time the recipe specifies – usually 15-20 minutes – before attempting to remove it. Try not to let it cool completely before removing it.