After 1 hour, add 200 g of your levain to your dough mixture, spreading it out over the top of the dough. Repeat the squeezing technique until the 2 are full incorporated. Wait 30 min, and then add the salt, incorporating using the squeezing technique again. The dough will still be very sticky, so I like to use a little bit of water on my hands throughout this process to make it a little easier. Adding the salt strengthens, tightens and compacts the gluten protein network. Cover and let rest for 30 min