During this time, the dough continues to ferment, further strengthening and leavening it.
The proof is the dough’s final, or second, rise after the dough has been divided and shaped and lasts until the dough is finally baked in the oven. During this time, the dough continues to ferment, further strengthening and leavening it. I typically proof at a cold temperature in the refrigerator (also called “retarding”).