Tobias Bielenstein is director Public Affairs, Sustainability & Communications of the Cooperative of the German Mineral Water Companies (GDB), which runs Europe's biggest refillable bottles system with more than one billion bottles and some 100 million crates. Tobias is also COO of the Working Group Refillables (Arbeitskreis Mehrweg), an organization managing the Refillable Logo and serving as a think tank & information point about refillables for companies, start-ups, authorities and scientists.