More Naturally Leavened Pizza Problems
A while ago, I was having issues with my pizza dough balls flattening out. Now, I have issues with my naturally leavened pizza dough getting rise in the oven and getting crisp on the bottom.
My starter is fed at 20% inoculation every 12 hours using cool tap water and kept at 100% hydration. I use entirely central milling artisan bakers flour - unmalted and unenriched.
My dough recipe has been, generally, as follows. 100% CM Artisan Baker's Craft, 62% to 65% room temperature water, 2.6% salt, 20% active leaven. This leaven has been everything from simply my starter at peak that would normally be discard, to a 1:1:1 leaven used in 3 hours to a 1:2:2 leaven used in 5 to 6 hours. The results have been the same, however. My final dough temp has landed anywhere from 74 to 80f - trying to stay in that range.
My fermentation has been as follows - 3 to 3.5 hours in bulk with folds every 45 minutes, ball, 2 hour room temp ball proof, then retard in fridge.
The dough balls have been holding shape and, from 62 to 65% hydration (not including leaven,) have been easy to stretch and have felt relatively airy. That being said, a few batches have felt stiff or "card-boardy" where the dough is less fluid and more rigid. Best I can describe it. Not even elastic - just stiff.
Despite the dough balls being airy, they are baking up very poorly. For the most part, flat bubbles in the center and layers of dough that look like the gluten has "split;" almost as if its rising up then frays. The bubbles remind me of my underfermented commercially yeasted dough. The bottoms bake somewhat crisp but more often spongy and blonde, with the circular bubbles really getting most of the crispness that's there. Finally, there is almost no oven spring. The dough bakes up far less airy than it appears.
Does anyone have any idea what's going on or what might be causing this? Most of the time, it doesn't even taste sour (though flavors of natural fermentation are there.) It just doesn't bake up crisp. The crust will get a lot of browning, but the bottoms get that not flat, circular bubble, barely risen bake.
I'm wondering if maybe I should convert my starter to rye?