Change(K)now! – A mindset change from single-use to circular or multiple-use of food delivery systems in cities of the BSR
Change(K)now!

Reusable Return Machine at the HAMBURG PORT ANNIVERSARY 2025

16 September 2025
Technical details

The Change(K)now! project partner Green Events Hamburg tested a reusable return machine for cups at the HAMBURG PORT ANNIVERSARY 2025.

System tested:

1 beer stand with reusable cup distribution and return machine. Approx. 1,500 cups, €1 deposit, cash refund. Cups were collected by the stand’s staff and cleaned on site.

Where:

The machine was installed in the bergmanngruppe area, between the Fish Market and the Landungsbrücken

When:

  • 9-11 May 2025

Aim:

To simplify cup returns and relieve staff. The pilot also sought to test whether scaling the system to other areas of the festival and to food containers would be advisable in the future.

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