You can let the dough cool a little in your cast iron pot, or you can remove it to a cooling rack (carefully because it is HOT).
Reduce the heat to 450ºF and bake the sourdough with the lid on for 20 minutes. Then remove the lid for 20 minutes until the dough takes on a dark color. You can let the dough cool a little in your cast iron pot, or you can remove it to a cooling rack (carefully because it is HOT).