Preheat your oven to 450 degrees with your Dutch oven or large pot inside of it. You will want the Dutch oven to be nice and warm for the dough to bake nicely. Because the Dutch oven takes up a lot of space, I only bake one loaf at a time.
After about 20 minutes, take one of your baskets out of the fridge. Roll your dough out of the basket onto a piece of parchment paper or silicone bread sling (the one I use is linked above). Using your bread lame or razor blade, slice your dough gently on the surface from top to bottom. This will help open up your dough and give that "ear" on your loaf.
Open up your Dutch oven and carefully place your dough inside. Put the lid back on and let it bake for about 20 minutes.
After 20 minutes, remove the lid from your Dutch oven and let your bread bake for another 10-15 minutes. This will help you get a nice golden brown crust on your bread.
Once your bread is crisped to your liking, carefully remove it from the oven and place it on a cooling rack. DO NOT cut into your bread right away! Let it fully cool for at least an hour before cutting into it. If you dive in too early, you'll get a gummy crumb and your bread will be chewy.
Repeat all Baking Day steps for your second loaf.
Once your bread is fully cooled, now you can enjoy it! I love a slice of sourdough with butter and jam.