Into a mixing bowl, add the flour, salt, sugar and yeast.
Mix well.
Add about 300ml lukewarm water and mix well.
if the dough is too dry add another 20 ml and knead the dough.
Knead for about 10 minutes. The gluten develops during this time.
Grease a bowl with olive oil and place the dough into it.
Cover and set it aside in a warm spot.
After 20 minutes, sprinkle the activated charcoal powder as a layer
Fold the dough over repeatedly to form the layers.
Grease the loaf tin and place the dough in it.
Cover and rest the dough for another 20 minutes.
Dimple the focaccia dough and brush it with olive oil.
Make faces or add herbs of your choice to the dimpled dough.
Preheat the oven at 180 degrees for 10 minutes.
Bake for 25 to 30 minutes in a fanforced oven.
Remove and cool the bread.
Slice to serve.