Stretch and fold: Again with wet hands, pull the dough from underneath, stretching and folding over the top. Turn the bowl 180º and repeat. Turn the bowl another quarter of a turn and repeat the stretching of the dough from underneath to top, and finally turn the bowl 180º and repeat. This tightens the dough and you will feel the dough become more difficult to stretch. You may choose to turn and stretch twice more depending on the feel of the dough. Leave covered for 1 hour.