Tobias Bielenstein

Genossenschaft Deutscher Brunnen

Tobias is director Public Affairs, Sustainability & Communications of the Cooperative of the German Mineral Water Companies (Genossenschaft Deutscher Brunnen), which runs Europe’s biggest refillable bottles system with more than one billion bottles and more than 100 million crates. He is also COO of the Working Group Refillables (Arbeitskreis Mehrweg), an organisation managing the Europan Refillable Logo and serving as a think tank & information point about refillables for companies, start-ups, authorities, and scientists. Tobias has been working since 1992 in different roles in the intersection of sustainability, public affairs, and marketing. 

How to enter the event


  1. Click on the link that will be sent on the day of the conference

  2. It is recommended that you use Chrome web browser.

  3. Select an attendee ticket and click “join event”.

  4. You will be redirected to a sign-up page. Please create an account with the email address you have registered with and click sign-up. If you already have a Hopin account, please log in with your details.

  5. You have now entered the conference. On the left side of your screen, you will see different tabs:


is where you can find all the information about the conference (agenda, bio of speakers, schedule with timings etc.)


is where the main speeches and the panel discussion will happen.


for a better connection, we recommend you close any video call softwares of websites. During the breaks, you have the possibility to connect with other participants. You can do so in two ways:

Click on the Networking tab and you will be connected automatically with a fellow event participant who also wants to network.

Look for the person you want to connect with on the attendee list (this list can be found by clicking on "people" on the right side of your screen) click on the name of the person you would like to talk to and invite him/her for a video call.

How to ask a question to the panelists

Write your question on the event chat, the moderator will have it in front of her/him and will pick relevant questions to ask the speakers.