»Biodegradable« is an EU certification. It means that no more than 10% of residual fragments with a size of more than 2 millimeters may remain after twelve weeks in industrial composting plants. Whether these residues are subsequently degraded over a certain period of time or under certain conditions has not yet been investigated and is therefore unclear. In an industrial composting plant, under the influence of oxygen, »bio«degradable plastic turns into CO2 and water. This plastic also contains additives, which also end up in the compost.
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GlossaryBiodegradable Residues CO2 Organic