Our product is a set of cups and saucers made of bio-based plastic containing spent coffee grounds (SCGs). The product provides a solution for café-goers who value a green life and entrepreneurs and café owners looking for an environmentally friendly function for their cafeterias. From environmental sustainability and innovation aspects, we reduce waste by reusing SCGs as materials to make new cups and saucers. Nevertheless, it is also innovative as the material of our products is safer, lighter, and has better thermal insulators than ceramic cups.