Ralf Rüller’s The Barn has roasted in Berlin since 2012, supplying ten Berlin cafés with third-wave specialty coffee plus locations in Palma, Seoul and Dubai.
The outpost on Invalidenstraße sits between the natural-history museum and the Berlin Wall memorial — quieter than the Hackescher Markt branch, with the same bean selection. The pick: pastéis de nata with a flat white, plus concrete advice for Aeropress home brewers. Card payments only.
