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.
Thinking about making your next event a verified Zero Food Waste to Landfill gathering? Find out how The PLEDGE can help you get there. → [Get Event Certified]
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.
[Download The Full Case Study Here]
Want to talk through what zero-waste event verification would look like for your organization? Our team is ready to help. → [Contact The PLEDGE Team]
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.
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Congratulations to the ICCA Congress team and PLEDGE on this historic zero food waste verification – what an inspiring model for the global events industry. Documenting these achievements with high-quality imagery matters, since strong visuals help communicate the sustainability story to sponsors and attendees. We have been using HD Photo Converter to enhance event photos for our reports, and the clarity it brings really helps these case studies stand out.
Congratulations on the ICCA Congress receiving this landmark zero food waste verification in Porto – it is a meaningful milestone for the global events industry. Documenting the journey with strong visual storytelling really helps these sustainability stories reach wider audiences and inspire other organizers. Looking forward to seeing this model scale to future congresses.
Congratulations to the ICCA Congress team and PLEDGE on this historic zero food waste verification – what an inspiring model for the global events industry. The Food Waste Warriors approach is a brilliant, actionable strategy that makes sustainability personal and achievable. Documenting achievements like this matters, and I am glad to see the international meetings sector leading by example.
Congratulations on this milestone for the ICCA Congress — it’s truly inspiring to see a major international event officially verified as Zero Food Waste to Landfill. The Food Waste Warriors concept is a brilliant way to make sustainability feel personal and achievable for every attendee. Documenting and verifying outcomes like this sets a strong precedent for the global events industry. Hopefully many more conferences will follow this model.
Congratulations to the ICCA Congress team and PLEDGE on this historic zero food waste verification. The Food Waste Warriors approach is a brilliant, actionable strategy that makes sustainability personal and achievable for every attendee. Documenting and scaling this kind of event-level change matters, and it is inspiring to see the international meetings sector lead by example.
Congratulations to the ICCA Congress team and PLEDGE on this historic zero food waste verification — an inspiring milestone for the global events industry. The Food Waste Warriors approach makes sustainability personal and tangible for every attendee, and documenting these achievements through official verification is exactly what the international meetings sector needs. Hope this sets a new standard that more global congresses will follow.
This is such a meaningful milestone for sustainable events. Having the ICCA Congress in Porto officially verified as Zero Food Waste to Landfill sets a strong example for international gatherings, and the idea of attendees becoming Food Waste Warriors is genuinely inspiring. I hope more associations follow this path in the coming years.
Congratulations to the ICCA Congress team for setting such a meaningful precedent with this Zero Food Waste verification. Turning attendees into Food Waste Warriors is a beautifully simple way to make sustainability feel personal and actionable. It’s encouraging to see large international gatherings lead by example, and I hope many more associations follow this path in the years ahead.
What a meaningful milestone for sustainable events. Having the ICCA Congress in Porto officially verified as Zero Food Waste to Landfill sets a clear example for international gatherings, and the Food Waste Warriors idea is genuinely inspiring. I hope more associations adopt this verification approach in the coming years.
Congratulations on turning the 64th ICCA Congress in Porto into the first major international meeting to earn the “Zero Food Waste to Landfill” verification. Having every attendee commit to finishing their plates as “Food Waste Warriors” is a powerful and replicable model for the events industry. The shared documentation will be a valuable reference for associations planning more sustainable congresses.
What a meaningful milestone for the ICCA Congress in Porto — turning attendees into Food Waste Warriors is such a tangible way to make sustainability part of the experience, not just a slogan. I appreciated reading about how the verification process unfolded on the ground, especially the practical steps that made zero food waste to landfill achievable at this scale. This kind of transparent documentation is exactly what other large international events need to study and replicate.
Congratulations to the ICCA Congress team on this historic Zero Food Waste to Landfill verification in Porto. The Food Waste Warriors concept turns a sustainability metric into something personal for every attendee, and the independent third-party documentation gives the milestone real credibility. It is encouraging to see a major international association event set such a transparent, well-documented benchmark for the global meetings industry. Hopefully many more congresses will follow this standard in the years ahead.
What a milestone for the 64th ICCA Congress in Porto. Verifying a large international gathering as Zero Food Waste to Landfill sets a real benchmark, and turning every attendee into a Food Waste Warrior is a clever way to make sustainability feel personal rather than procedural. I hope more association congresses follow this model and publish the same kind of third-party verification so the results are easy to trust.
Congratulations to the ICCA Congress team in Porto for achieving this historic zero food waste verification. It is inspiring to see a major international association meeting set such a clear example for sustainable event planning. Turning every attendee into a Food Waste Warrior is a powerful way to embed sustainability into the participant experience. I hope more global congresses follow this verifiable, documentation-first approach.
Congratulations to the ICCA Congress team and PLEDGE on this historic Zero Food Waste to Landfill verification in Porto. Turning attendees into Food Waste Warriors is a beautifully simple way to make sustainability feel personal and actionable, and the independent third-party verification really adds credibility to the milestone. It is encouraging to see a large international association event set such a transparent, well-documented benchmark for the global meetings industry.
Congratulations to the ICCA Congress team in Porto for setting such a clear and verifiable benchmark on food waste. Turning every attendee into a Food Waste Warrior is a smart way to make sustainability feel personal, and the third-party documentation really adds credibility to the milestone. It would be great to see more association events adopt this same transparent approach in the coming years.
Congratulations on the 64th ICCA Congress in Porto becoming the first international association meeting to earn official Zero Food Waste to Landfill verification. It is genuinely inspiring to see attendees step up as Food Waste Warriors and finish every plate at such a large-scale event. The post-event verification process adds real accountability to sustainability claims, which the rest of the industry could learn from. Thank you for documenting this milestone so other organisers have a practical reference.