A hot-from-the-oven muffin will fall apart if you try to immediately remove it from the muffin tin, but letting muffins cool completely in the pan can lead to soggy bottoms, since the heat from the muffins becomes trapped in the bottom of each well. Let the muffins cool in the pan for about 10 minutes so that they can cool slightly and set, them carefully remove the still-warm muffins from the pan and transfer them to a wire rack to cool completely.