The manufacturer of Compostable coffee bags tells you that compostable plastic bags can be biodegraded under the special conditions and time scales of high-temperature soils, and usually require industrial composting to achieve better degradation efficiency.

From the above three points of view, if the plastic bag is a biodegradable plastic bag or a compostable plastic bag, it will eventually be converted into water and carbon dioxide due to biodegradation, and disappear from the environment, achieving a true "environmental protection" effect!
Compostable coffee bags manufacturers tell you that if plastic bags are "degradable" plastic bags, including "photodegradation" or "thermal oxidative degradation", they can only turn the plastic bags into tiny plastic fragments. Compostable coffee bags manufacturers tell you Not only is it not conducive to the recycling and cleaning of plastics, the fragmented plastics entering the environment will cause more pollution problems. Therefore, this "degradable" plastic bag is not environmentally friendly.
Note:
Photodegradable plastic bags: The manufacturer of Compostable coffee bags tells you that plastic bags are degraded by the action of natural light; light belongs to ultraviolet radiation, which can only cause partial or complete damage to the polymer.
Thermal oxidative degradation of plastic bags: Compostable coffee bags manufacturers tell you that plastic bags degraded by heat and (or) oxidation; thermal oxidative degradation belongs to oxidative corrosion, which can only cause partial or complete damage to the polymer.