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Correspondingly, how long does it take for packing peanuts to decompose?
It's not biodegradable: The estimates on how long it takes expanded polystyrene to degrade vary wildly depending on who you ask and what the method of decomposition is. Some people say a decade, others say 500 years, and still others say it will take a million or more years.
Correspondingly, how can you tell if packing peanuts are biodegradable?
Simply run a pellet under water to determine if its biodegradable. Compostable packaging pellets will completely dissolve in a matter of minutes.
A: According to StarchTech Inc., manufacturer of starch-based packing peanuts, the material can be emptied into a large sink, laundry tub or bath tub and dissolved by running warm/hot water.