Mix whole wheat flour, salt, sugar, and dry yeast together in a large bowl.
Add warm water and olive oil, then knead the dough.
Let the dough rise at room temperature for 1 hour.
Shape the dough into a round loaf.
Place it on a baking tray and let it rise a second time for 30 minutes.
Bake in a preheated oven at 180°C for 25–30 minutes.
Cool the bread and serve.