In recent years, reusable cups have become the most visible solution to single-use containers. However, the discussion often remains on the surface: the cup itself. From our experience in mass events, we know that the cup is just one piece of a much larger system. What really makes the difference is the ability to collect, wash and integrate those cups back into circulation.
The challenge of reusable cups
When a festival or event introduces more resistant cups but does not articulate a return system, real reuse is lost. The result is clear:
- Vessels abandoned inside and outside the enclosure.
- Assistants who take home an object that they rarely reuse.
- A false sense of sustainability, but no positive environmental impact.
In other words, a thicker glass is not automatically a sustainable glass.
The importance of washing
The real change comes when there is a complete circuit:
- Delivery of the cup during the event.
- Pick up at the end of the program.
- Transportation to the washing center.
- Professional sanitization.
- Packaging and storage for future use.
Only with this closed cycle can we speak of an efficient reuse system, capable of reducing waste and optimizing resources. Professional washing guarantees food safety, extends the useful life of the cups and allows the same cup to go through dozens of different events.
Benefits for organizers
For producers and organizers, implementing a washback system is not just a regulatory obligation. It is an opportunity to:
- Reduce costs compared to the constant purchase of new glasses.
- Improve the attendee's experience, avoiding accumulation of waste in the enclosure.
- Solid compliance with packaging and waste regulations.
- To position itself as a sustainable benchmark, with measurable and visible actions.
An alert for the events industry
We are seeing more and more critical voices pointing out the bad practices surrounding the reusable cup. Environmental organizations, specialized media and even the attendees themselves are denouncing what they consider greenwashing: thicker cups that end up in the trash, systems with no return, deposits that are never returned.
For the organizers, this represents a major reputational risk. Sustainability is no longer just a regulatory requirement, but also a value observed and questioned by the public. A poorly designed system can become a focus of criticism, affect the attendee experience and undermine confidence in the event.
The conclusion is clear: in this context, it is not enough to simply hand out a reusable cup. What really protects the reputation of a festival or event is to demonstrate that there is a complete reuse loop, where collection and washing ensure that the cup will be used again in the future.
The decisive role of devolution
An essential part of this circuit is to make it easy for the public to return the glass. It is not enough to have the intention to pick them up: it is necessary to offer accessible and varied return points that adapt to the flow of the event.
- Bar return: the most direct and visible system.
- Specific return points: located in strategic places to avoid accumulation of abandoned vessels.
- Innovative return methods: from automated machines to dedicated personnel in key areas.
When the public perceives that returning the cup is simple and agile, the rate of return skyrockets. Most importantly, the organization conveys a clear message of real commitment to sustainability. On the other hand, when the return is complicated or the deposit is not returned, attendees interpret the cup as just another business and not an environmental measure.
Ultimately, allowing returns makes the difference between an event that generates trust and a positive reputation, and one that ends up associated with opportunistic practices.
Cases demonstrating the impact
Festivals and cities that have integrated a wash-back system have achieved recovery rates of over 90% and, most importantly, a real reduction in plastic waste. The success is not in the material of the cup, but in the circularity operation that accompanies it.
Towards a truly sustainable model
At ENCORE! we believe that sustainability in events cannot remain a symbolic gesture. It requires well-designed and managed systems, where washing is the centerpiece. Only in this way can we move towards zero waste events that combine economic viability, regulatory compliance and positive environmental impact.
The future of events lies in complete reuse systems, where the washing and return of cups is at the heart of true circularity. Attendees are no longer satisfied with token gestures and are increasingly demanding more transparency and consistency. For the organizers, this means a clear opportunity: betting on solutions that combine sustainability, operational efficiency and public confidence. At ENCORE! we work precisely in that direction, accompanying festivals and events so that they can offer responsible experiences, comply with regulations and, above all, generate a positive and lasting impact.

