Compostable plastics like polylactic acid (PLA) don't decompose at room temperature, but only in industrial composters at 60 C: https://en.wikipedia.org/wiki/Po

Compostable plastics like polylactic acid (PLA) don't decompose at room temperature, but only in industrial composters at 60 C: https://en.wikipedia.org/wiki/Polylactic_acid#:~:text=degrades%20poorly%20in%20landfills%20and%20household%20composts%2C%20but%20is%20effectively%20digested%20in%20hotter%20industrial%20composts%2C%20usually%20degrading%20best%20at%20temperatures%20of%20over%2060%C2%A0%C2%B0C https://en.wikipedia.org/wiki/Polylactic_acid#:~:text=degrad.....