SADOU innovatively repurposes excess tea brewing water for hydroponic plant growth, seamlessly combining the tea ritual with environmental responsibility through efficient natural cooling with copper panels. This not only enhances convenience but also tackles tea waste with an automatic drying system. The resulting dried tea waste, with deodorizing and moisture-absorbing properties, proves effective for eco-friendly household cleaning, reducing reliance on chemical products and establishing a closed-loop water cycle in line with principles of sustainable living.