Do you finish your baking outside the Dutch oven?
I came across a recipe for sourdough where the process was to bake the loaf inside a pre-heated Dutch oven for 17 minutes and then remove the loaf and bake it on the oven rack for another 23 minutes until fully baked. Is this a technique that you use? I don't actually have a cast iron Dutch oven, but a casserole dish that can be used in the oven. Anyway I tried it and the result was very good.
Here's a recent example.