In a groundbreaking collaboration, materials science leader Covestro and German development agency GIZ have introduced innovative solar drying technology to revolutionize coffee production in Ethiopia. The partners have developed specialized polycarbonate solar dryers that address critical challenges facing Ethiopia's coffee farmers, who have been struggling with the impacts of climate change on their livelihoods.

Covestro and German development agency GIZ have introduced innovative solar drying technology to revolutionize coffee production in Ethiopia.

Ethiopia's coffee sector, which supports millions of smallholder farmers and contributes significantly to the nation's economy, has been particularly vulnerable to rising temperatures and unpredictable rainfall patterns. These changing conditions have led to reduced yields and increased susceptibility to plant diseases, threatening both quality and quantity of harvests. The new solar drying technology offers a sustainable solution to these pressing problems.

The parabolic-shaped dryers utilize lightweight, transparent polycarbonate multiwall sheets instead of traditional glass, providing superior insulation while allowing precise control over temperature and humidity. This advanced design not only accelerates the drying process but also protects coffee beans from contamination by rain, pests, mold and other common issues with conventional sun-drying methods. The UV-resistant material ensures optimal conditions for producing high-quality coffee while withstanding Ethiopia's harsh climate.

Implemented through GIZ's develoPPP program, which fosters sustainable development through public-private partnerships, the project has already seen promising results. Six solar dryers are currently operational across Ethiopian coffee cooperatives, with early adopters reporting significantly reduced drying times and improved bean quality. The technology's success has attracted attention from major industry players, including one of Ethiopia's largest coffee roasters that has recently invested in four additional units for their own production facilities.

Dr. Helene Widmer, GIZ Project Manager, emphasized the transformative potential of this innovation: "Our collaboration with Covestro demonstrates how innovative material technologies can contribute to stabilizing agriculture."

Pejman Norastehfar of Covestro added, "We are proud to work with GIZ and local cooperatives to provide a solution that not only increases efficiency but also enhances the quality and shelf life of coffee. With our solutions, we can help address the challenges of climate change right here on the ground."

The initiative represents a model for sustainable agricultural development, combining cutting-edge technology with practical, scalable solutions. As the project expands, it offers a blueprint for addressing similar challenges in other coffee-producing regions facing climate-related threats to their harvests and livelihoods. With the involvement of major local processors, the technology is gaining mainstream acceptance, signaling potential for broader adoption across Ethiopia's vital coffee sector.

In a groundbreaking collaboration, materials science leader Covestro and German development agency GIZ have introduced innovative solar drying technology to revolutionize coffee production in Ethiopia. The partners have developed specialized polycarbonate solar dryers that address critical challenges facing Ethiopia's coffee farmers, who have been struggling with the impacts of climate change on their livelihoods.

Covestro and German development agency GIZ have introduced innovative solar drying technology to revolutionize coffee production in Ethiopia.

Ethiopia's coffee sector, which supports millions of smallholder farmers and contributes significantly to the nation's economy, has been particularly vulnerable to rising temperatures and unpredictable rainfall patterns. These changing conditions have led to reduced yields and increased susceptibility to plant diseases, threatening both quality and quantity of harvests. The new solar drying technology offers a sustainable solution to these pressing problems.

The parabolic-shaped dryers utilize lightweight, transparent polycarbonate multiwall sheets instead of traditional glass, providing superior insulation while allowing precise control over temperature and humidity. This advanced design not only accelerates the drying process but also protects coffee beans from contamination by rain, pests, mold and other common issues with conventional sun-drying methods. The UV-resistant material ensures optimal conditions for producing high-quality coffee while withstanding Ethiopia's harsh climate.

Implemented through GIZ's develoPPP program, which fosters sustainable development through public-private partnerships, the project has already seen promising results. Six solar dryers are currently operational across Ethiopian coffee cooperatives, with early adopters reporting significantly reduced drying times and improved bean quality. The technology's success has attracted attention from major industry players, including one of Ethiopia's largest coffee roasters that has recently invested in four additional units for their own production facilities.

Dr. Helene Widmer, GIZ Project Manager, emphasized the transformative potential of this innovation: "Our collaboration with Covestro demonstrates how innovative material technologies can contribute to stabilizing agriculture."

Pejman Norastehfar of Covestro added, "We are proud to work with GIZ and local cooperatives to provide a solution that not only increases efficiency but also enhances the quality and shelf life of coffee. With our solutions, we can help address the challenges of climate change right here on the ground."

The initiative represents a model for sustainable agricultural development, combining cutting-edge technology with practical, scalable solutions. As the project expands, it offers a blueprint for addressing similar challenges in other coffee-producing regions facing climate-related threats to their harvests and livelihoods. With the involvement of major local processors, the technology is gaining mainstream acceptance, signaling potential for broader adoption across Ethiopia's vital coffee sector.