8-12 hours later, remove dough from fridge.
Onto a lightly floured counter or surface, scrape out the dough using an oiled hand or dough scraper. Lightly sprinkle dough with flour once on counter, and bring into a loose ball shape. Cut dough into 6 160-165g pieces.
Dust hand lightly, and place your dominant hand's palm on the dough, and roll into a tight round ball, using the tension from the counter. If the ball slips and slides around, that means there is too much flour on the counter. Move to a less floured area, or remove some flour from the counter using a dough scraper.
Allow all 12 balls to sit for 10-15 minutes to help relax the gluten, and to facilitate rolling the balls into logs.
Lightly dust hands with flour. Place 1 ball of dough on the counter in front of you, and gently press down to form a thick pancake. Using both hands, pick up the top edge of the pancake, and fold it down by 1/4", and gently press with the tips of your fingers to help secure it. Repeat this, until you get to the bottom of the pancake and have a mini-log. Set aside on a floured area, and repeat with the remaining balls.
Roll the mini-logs into 12-14" logs. Lightly dust the counter and your hands with flour, just enough to not allow the dough to stick to your hands and counter. If there is too much flour, the logs will slip and slide around as you try to roll to elongate them. Roll under the palms of your hands, working your palms outward with each rolling to help elongate the logs.
Set logs aside on a floured portion of the counter to rest as you continue to roll the remaining logs.
Prepare 2 half sheet pans with parchment paper, and bring one to your work surface. Set 3 logs onto the pan, and gently stretch the logs to ensure they are all 12-14" (they shrink up a bit with they are moved).
Pinch the top ends (furthest from you) together. Then, braid the logs, tugging the logs to get good definition. Once you reach the end of the braid, gently press the ends together. Tuck both the top and bottom ends of the braid under the loaf, making it look as neat as possible. To elongate the loaf, gently press on the braid, ensuring even thickness in the entire loaf.
Repeat and braid the second loaf.
Place the sheet pans in the fridge, leaving the loaves uncovered for 30 minutes. After this, cover the loaves with plastic wrap. The plastic wrap will stick considerably less to cold dough. Proof the loaves 8-12 hours. Take loaves out 1 to 2 hours before baking. The loaves should be very puffy, and when poked, should hold an indentation.
Alternatively, cover with plastic wrap or a damp kitchen towel, and proof the loaves right after braiding for 3-4 hours at room temperature. The loaves should be very puffy, and when poked, should hold an indentation.