CoffeeMush

Abstract

The CoffeeMush project represents an innovative initiative to address the issue of organic waste management through innovative composting technology. Initiated by a diverse team of six engineering students from different fields and countries across Europe, the project seeks to transform the way we handle coffee waste by turning it into a valuable resource: edible mushrooms. This initiative not only aims to reduce waste but also to promote sustainable living and environmental education. The problem addressed is that most organic waste is not reused, with only about 5% being recycled currently. Additionally, existing kitchen composters are expensive and do not produce useful fertilizers. CoffeeMush will not only compost coffee waste but also use it as a substrate for mushroom cultivation, providing benefits in waste management and food production. The project was fully developed, including a marketing strategy and taking into account ethical, deontological concerns, and eco-efficiency measures for sustainability. The project was developed with a clear structure: data collection and monitoring, affordable hardware solutions, open-source software, use of the International System of Units, and compliance with international directives. During the design process, various considerations were taken into account to ensure an efficient and sustainable product. The concept of CoffeeMush includes a dark room for mycelium growth and a light room for mushroom growth. The device can automatically manage ventilation, irrigation, and temperature, with a sensor system controlling optimal conditions. The final design allows coffee grounds to be used twice before being converted into fertilizer. The project contributes to environmental sustainability and offers a practical and innovative product for families and large producers of coffee waste, such as restaurants and schools. Despite some limitations in the initial prototype, CoffeeMush has significant potential for improvement in cost, functionality, and efficiency, with possibilities for integrating an app for user communication and detailed monitoring of the composting and mushroom cultivation process.