7. Let rise. To prevent the dough from forming a hard crust while rising cover with a lightly damp tea towel over top, or place a piece of plastic wrap very loosely over the top and allow to hang at the sides (do not make the wrap tight as these will rise to double).Allow to rise for 24 hours in the fridge, covered. Or rise for 2-3 hours at room temperature, then 8-10 hours in the fridge, covered. Or rise 5-6 hours at room temperature.