The pilot test was carried out at a smaller event than the two previous pilots in order to better control the system.

In the first phase, Fira de Barcelona’s catering outlets and food products were analyzed, along with the opportunities and barriers to implementing the reusable system. The types of packaging to be included in the pilot were defined, and Fira de Barcelona was advised in selecting both the packaging supplier and the system management service provider, ensuring alignment with the specific needs of the trade fair environment.

In the second phase, the pilot test was designed and implemented during the Interihotel trade show. inèdit was also responsible for designing the communication materials, produced in multiple languages with clear and unambiguous visual messaging, including posters, stickers for consumption points, and signage for return stations.

A comprehensive monitoring process was carried out to identify opportunities for operational improvement and to assess the system’s understanding and acceptance among both users and catering operators. Technical, economic, and environmental results were analyzed using a set of hypotheses and key performance indicators, including return rate, carbon footprint, water consumption, waste generation, and unit cost compared to the single-use packaging scenario.

In the third and final phase, based on the pilot results, the minimum return rate required to ensure both carbon footprint and water consumption were lower than in the single-use scenario was calculated.

To ensure continuous improvement in return rates and eliminate competition with single-use packaging, actions were defined to expand Fira de Barcelona’s food offering in reusable packaging.

Finally, large-scale implementation costs were estimated to assess medium- and long-term economic feasibility and efficiency. Cost-sharing models between catering operators and the venue were also proposed, aligning responsibilities within the economic model and improving overall system viability.

After two years of collaboration and two pilot tests, the packaging return rate has improved substantially, and the initiative has been widely well received by both users and catering operators.

This project demonstrates that reusable packaging at large-scale events is not only a viable option, but an essential tool for reducing waste, decreasing reliance on virgin raw materials, and advancing toward more circular business models.

Fira de Barcelona’s experience confirms that, with proper planning and coordination, these systems can be scalable and replicable even in highly complex logistical environments. The key to success lies in long-term collaboration, consistency, and shared knowledge.