Preheat the oven to 325 degrees F. In a large bowl, combine the coconut, sugar, egg whites, salt and coconut oil, mixing with a large spatula until all of the coconut is moistened. Press the coconut into a 9-inch springform pan evenly, pressing it up the sides as well. Place the pan on a baking sheet and stick it in the oven. Bake it for 20-25 minutes, or until golden and slightly crispy. Let cool completely.