To make a shinny and crusty surface
When you put the dough in the oven, also put another tray of water in the oven, the water will create a steam and it will make the bread more shinny and crusty.
Adding grain on the dough
If you like to eat grains, like sesame seed, flax seed, poppy seed etc, after you have done moulding, you can spray water on the dough and spread the seeds on, and then you will have extra grain on your bread.
