This report is an Addendum to the main report, titled ‘Assessing Climate Impact: Reusable Systems vs. Single-use Takeaway Packaging’ (hereafter referred to as the ‘main report’). The main report demonstrated the potential greenhouse gas (GHG) savings from implementing a reuse system for takeaway items compared to single-use alternatives. The aim of this Addendum is to build on the main report and apply the ‘per serving’ climate impact within the context of reuse schemes in two European cities: Aarhus (Denmark) and Berlin (Germany).