Pros: Composed of polystyrene, a plastic polymer better known as Styrofoam, traditional loose fill packing peanuts are difficult to decompose. After disposal, they can end up in a landfill or floating around the ocean for many, many years. Biodegradable packing peanuts are made from natural, nontoxic sources, such as wheat and corn starch. They dissolve in water and can be thrown into compost piles after a single use. In addition, biodegradable foam peanuts do not have an electrostatic charge, meaning they will not stick to clothes.
Cons: Biodegradable starch-based packing peanuts may be a more environmentally-friendly option, but they do have their disadvantages. With a higher weight than traditional packing peanuts, the eco-friendly version increases shipping costs. Production also has higher costs than traditional packing peanuts, and in a challenging economy, many consumers and suppliers will often choose reduced costs over greener, more expensive alternatives. Many recycling programs accept Styrofoam packing peanuts, which are recycled and color coded to indicate material origins. Green peanuts are made from at least 70% recycled materials.
Biodegradable corn starch pellets also dissolve in water as can be seen in the video below: This would be a much more effective and environmentally friendly solutions to disposing on the pellets.