The recent 64th ICCA Congress made history by setting a groundbreaking benchmark for the global events industry. As a premier sustainable congress Porto proudly hosted, the entire gathering (8–12 November 2025) successfully operated as a verified Zero Food Waste to Landfill Event. Achieving this level of sustainable event verification required a massive structural shift, but it proved that large-scale international conventions can drastically lower their environmental impact.
Achieving Sustainable Event Verification
Operating a truly green initiative at this scale is no small feat. The historic gathering took place across four iconic venues in Portugal: the Alfândega Congress Centre, the Coliseum of Porto, the Stock Exchange Palace, and the Super Bock Arena
Therefore, managing the catering footprint required strict, synchronized coordination across the city. By implementing meticulous monitoring and strategic waste management, the event created a comprehensive ICCA Congress sustainability case study that other destination marketing organizations can easily replicate.
To learn exactly how this massive operational framework was executed across all four locations, you can read more about the [Zero Food Waste Event: ICCA Congress Porto Benchmark].
Turning Attendees into Food Waste Warriors
In addition to the behind-the-scenes logistics, the success of this sustainable congress Porto experience relied heavily on attendee mindsets. Organizers actively led visiting professionals to become “Food Waste Warriors.”
As a result of this engaging campaign, participants collectively committed to one simple, powerful action: finishing every single plate. This collective effort demonstrated that individual behavioral changes are essential to achieving zero-waste luxury in the hospitality sector.
Ultimately, this landmark event sets a new standard for future international meetings. If you want to implement these exact green strategies at your next regional gathering, you can download our complete breakdown.
What a historic achievement for the 64th ICCA Congress to set such a high benchmark as the first verified zero food waste event to landfill. The approach of empowering professionals to become ‘Food Waste Warriors’ by simply finishing their plates is a brilliant, actionable strategy that makes sustainability personal and achievable. This case study is an inspiring example of how major international meetings can lead the way in operationalizing true environmental responsibility.