ReKáva focuses on local recycling of coffee grounds. Our mission is to save tons of waste that would otherwise end up in mixed waste or incinerators. We provide a collection service for cafés, companies, and institutions, using electric cargo bikes for transport.

The grounds are stored in a Smart Bin equipped with a sensor that monitors their status and fill level. Connected to an app, our riders know exactly when collection is needed. In community gardens, the grounds gain a second life – serving as a substrate for growing oyster mushrooms. This system delivers economic, ecological, and scientific benefits. Organizations also receive a monthly transparent report on the amount of waste diverted from landfills.

Alongside the collection service, we also offer a solution for smaller businesses and households through growkits, which allow people to grow their own oyster mushrooms on coffee grounds. In cooperation with the Czech manufacturing company Plastia, we developed a new type of growkit containing pigment made from coffee waste. Thanks to cascade recycling, coffee grounds are also transformed into a natural colorant for plastics (masterbatch), creating fully circular products. This innovative growkit was awarded the prestigious Red Dot Design Award 2025 for design and sustainability.

Building on the growkit, we further developed the concept of Mushroom Walls, installed in cafés, companies, and public institutions. This is not limited to Prague – it is a pilot project launched across the Czech Republic, with the ambition to gradually cover all regions. Mushroom Walls represent an on-site circular waste solution – organizations use their own coffee grounds to grow mushrooms. They gain not only a unique sustainability tool but also a tangible benefit for employees or customers in the form of fresh mushrooms.

ReKáva connects ecology, innovation, and community. Every cup of coffee can thus become the beginning of a new cycle – from waste to a healthy, delicious harvest.

We offer software and hardware solutions for coffee grounds collection to other European cities and organisations, making our solution scalable. Comprehensive data collection from individual organizations, collection scheduling and automatic calculations into reports from the collected data, reporting and analysis module and tools for report generation and data analysis. Mobile application - using QR code or NFC to record smart bins, its collection and filling.

Contacts
Jana Šrámková
Email: jana.sramkova@rekava.cz
Telephone: +420 723 981 733
Website: www.rekava.cz