They describe their concept as "brutally regional" and also as "Germany's most political restaurant".
Nobelhart and Schmutzig only process products from the Berlin area in their restaurant. The owners Billy Wagner and Micha Schäfer serve their guests a regional 10-course menu, accompanied by exquisite wines.
I had the pleasure of meeting and interviewing Billy Wagner at his place of work. You can read here what interesting things he told me.