Our Biodegradable Disposable Paper Cup is only for one-time use, effectively preventing cross-infection of infectious diseases.All disposable Biodegradable Tableware have been tested by American ASTM-D6400 and EU EN13432 compostable certification standards.The used biodegradable disposable paper cup is buried in the soil, or buried in a micro-organism environment. After 3 months of composting, the paper cups can be completely degraded into carbon dioxide and water 100%, becoming organic fertilizers without white pollution.