The degradation time of biodegradable coating paper cups is influenced by various factors, including the coating material, environmental conditions, and manufacturing processes. Coating materials such as polylactic acid (PLA) and other biodegradable materials can relatively quickly decompose into carbon dioxide and water through microbial action in natural environments, but the specific time varies depending on the material type, thickness, and environmental conditions. Environmental factors like temperature, humidity, and microbial activity in the soil can accelerate or slow down the degradation process. Manufacturing processes, particularly the uniformity and adhesion of the coating, also play a role in affecting the degradation speed.While it is challenging to provide an exact degradation time, generally speaking, biodegradable coating paper cups made with advanced biodegradable materials and technologies can potentially degrade within a few months to a year under suitable environmental conditions. However, the specific degradation time needs to consider actual usage scenarios and environmental factors.To promote environmental protection, it is recommended to sort biodegradable coating paper cups into appropriate trash bins after use and handle them according to local environmental conditions. This not only reduces plastic pollution but also drives the development of sustainable consumption and production patterns.In summary, the degradation time of biodegradable coating paper cups is a complex issue requiring comprehensive consideration of multiple factors. By choosing environmentally friendly materials, optimizing manufacturing processes, and properly disposing of waste, we can contribute to protecting the environment.