A: Compostable biodegradable materials also have drawbacks because they are dependent on composting facilities. The most suitable conditions are 60℃ (40℃ - 80℃ can be), 90% humidity conditions can be quickly degraded. However, in the natural environment, although it can still be completely degraded, it will take at least several years. The degradation time needs to be longer under conditions of low temperature, drought or microbial inactivity.