WasteOlas is deploying a Swiss-made CO2 recycling system at Dr. Gab’s

On February 26, 2026, Dr. Gab’s and WasteOlas inaugurated a system in Puidoux to recycle CO2 produced during beer fermentation. It was a festive occasion, but above all the culmination of three years of work: capturing naturally produced CO2, purifying it, and then reusing it directly on-site, in line with the principles of self-sufficiency and the circular economy.

An inauguration that marks the culmination of three years of work

Behind the event lies a technical and human endeavor that began in 2023. Designing a reliable CO2 recovery system for a brewery environment involves meeting stringent requirements: operational continuity, energy consumption control, gas quality, safety, and integration into the production process.

This launch marks a significant milestone: a solution designed for everyday use, made possible by a local partnership between Dr. Gab’s and WasteOlas.

Un système Swiss made pour capter, purifier et réutiliser le CO2 de fermentation

The system developed captures the CO2 generated during fermentation, compresses it, filters it, monitors its purity, and then re-injects it into other stages of the internal process.

Gabriel Hasler, co-founder of Dr. Gab’s, summarizes the approach: “Together with this partner, we have developed a Swiss-made system to capture CO2 from fermentation, compress it, filter it, verify its purity, and reinject it into other internal processes.”

A local circular economy, conceived as an ecosystem

WasteOlas developed the entire system in collaboration with numerous partner suppliers, all united by a common goal: to foster the growth of a local ecosystem. All partners involved in this project were located within 70 km of the brewery—a deliberate choice made to strengthen resilience, promote regional expertise, and reduce the environmental impact of logistics.

Reduce reliance on external supplies, promote circularity

Beyond innovation, the challenge is strategic: reducing dependence on external supplies of food-grade CO2 while lowering the overall carbon footprint. The brewery is thus making use of a byproduct it already generates on-site, rather than relying on a resource that must be purchased and transported.

The stated goal is clear: “to eventually meet 100% of our needs, while optimizing energy consumption and quality at every stage.”

Conclusion

This inauguration sends a strong signal in support of CO2 utilization: local, robust solutions tailored to on-site conditions can transform an unavoidable emission into a useful resource. For WasteOlas, this marks the realization of an approach focused on CO2 circularity as close as possible to production sites, and validates the potential for deployment in other sectors where CO2 is regularly available.

The next step is to step up the pace: further optimize energy efficiency, expand applications, and, where appropriate, connect stakeholders within the same region to foster the emergence of a true circular CO2 ecosystem.

Photo and video credits

Photos and video of the opening ceremony by Gabriel Lado: https://www.lado.ch/

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