Although biodegradable and compostable bags are usually made from similar raw materials, they are not the same.
First, biodegradable bags degrade under natural conditions, while compostable bags need to be artificially composted under specific conditions.
The decomposition time of biodegradable bags in the natural environment is unpredictable, while compostable bags usually decompose within 6 months in industrial composting facilities or 12 months in home composting.
In addition, the certification standards are different: biodegradable bags do not need to be completely harmless after degradation, while compostable bags must prove that they are non-toxic after decomposition.
Therefore, the certification standards for compostable bags are more stringent, and production requires higher technology and precise material ratios, which is also more environmentally friendly.