Judging whether a garbage bag is a degradable garbage bag can be judged from the following points: 1, First of all, from the material of the outer packaging, whether the material is degradable or not PLA +PBATWait 23. Check whether the outer packaging has a shelf life. Generally, degradable garbage bags have a shelf life, which can be divided into half a year or one year due to different materials. 31. Smell the smell. Generally, biodegradable garbage bags have a PLA nt smell. 4, Biodegradable garbage bags under composting conditions180Sky can be completely decomposed into carbon dioxide and water, organic cycle, harmless to human body and environment.