Can styrofoam be reused?
Most areas (including a large part of the US) are unable to recycle styrofoam, so the most eco-friendly way to deal with it is to reuse and repurpose it! You can reuse packing peanuts in planters, turn Styrofoam cups into seedling starters, repurpose a Styrofoam cooler to be a compost bin, and so much more!
We must reduce our usage of styrofoam or replace it with more earth-friendly materials like corn. Packing peanuts made from corn will dissolve in water. Reusing styrofoam is another earth-friendly way to use styrofoam, but recycling it is not possible.
The website reads: "Expanded polystyrene like most plastics has a bad name! It is thought of as non-recyclable. However, it is actually 100% recyclable!
Polystyrene is slow to degrade, and if disposed of improperly, the foam can leach chemicals into the environment harming water sources. Polystyrene manufacturing is an enormous creator of hazardous waste. Furthermore, polystyrene manufacturing greatly contributes to global warming.
Now, recycled EPS can't be used to make insulated cups, foam trays or anything else that will come in contact with food. However, it can be used to make items like outdoor furniture, roofing tiles, coat hangers, seedling containers, door and window frames, packing peanuts and so much more.
Styrofoam cups are non-biodegradable. Throwing away this much single-use plastic is harmful for several reasons. First, Styrofoam cups are non-biodegradable. Instead of breaking down over time, Styrofoam cups break into tiny pieces and stay in the environment for hundreds of years.
In 1986, the US Environmental Protection Agency (EPA) announced that the polystyrene manufacturing process was the fifth largest source of hazardous waste. Styrene has been linked to adverse health effects in humans, and in 2014, it was listed as a possible carcinogen.
Styrofoam is made out of styrene which is a petroleum-based product. How is styrofoam made? Through polymerization, styrene is refined into polystyrene and then a hydrofluorocarbon agent is added. This combination is then extruded and allowed to expand under pressure until it forms a foam board.
EPS is recyclable, but because it is lightweight, bulky, and difficult to clean due to its porous nature and common usage in food packaging, it's a costly material to recycle at an efficient scale, like programs for glass or cardboard.
"It is lightweight and breaks up easily," Judson said. "Wind or rain transports foam to storm drains and water bodies, where it breaks into small pieces that are nearly impossible to remove.
Why does Styrofoam have a recycling symbol?
We now know that EPS is not generally recyclable in curbside recycling programs, but then why does it have a recycling symbol on it? EPS is made from petroleum, like most plastics. Since polystyrene is comprised of petroleum, it does have properties that make it technically recyclable.
In its expanded form, polystyrene has low thermal conductivity which makes it a great insulator. Polystyrene foam contains a lot of small pockets of air within its structure, and this is an important key to its insulating properties.

Despite what you may have heard, expanded polystyrene (EPS) is environmentally friendly. Made from 98% air, no toxic substances are used in the manufacture of EPS and it is 100% recyclable.
The use of Styrofoam or other foamed polystyrene products is a personal choice. If used properly, it is an economical, sanitary product, with low environmental risks. However, used improperly, it can quickly become an unsightly environmental nuisance and does have potential health risks.
Similarly, plastics #3 and #6 (#6 is styrofoam) should not be reused—they also cannot be recycled. Also be sure to double-check any #7 plastic you have at home because it may contain BPA which can be bad for your health according to the National Institute of Environmental Health Sciences.
Styrofoam is non-biodegradable and non-recyclable. According to Washington University, Styrofoam takes 500 years to decompose; it cannot be recycled, so the Styrofoam cups dumped in landfills are there to stay.
- Bring your own takeout containers.
- Refuse Styrofoam cups whenever possible.
- Choose paper plates or bowls instead of Styrofoam.
- Avoid Styrofoam egg cartons.
- Convince your grocery store to cut out the Styrofoam trays for produce and meat.
Can You Burn Styrofoam? No. You should never burn Styrofoam or another polystyrene foam material. Burning Styrofoam releases toxic chemicals such as styrene monomer, benzene, carbon black, and carbon monoxide into the air.
Since polyethylene foam is classified as class 4, you can recycle it 100%. To effectively and easily handle PE foam waste, recycling companies use modern recycling machines. PE is a type of thermoplastic so it turns into liquid at a certain melting point.
Foamed polystyrene is made into insulation, packaging, and food containers such as beverage cups, egg cartons, and disposable plates and trays. Solid polystyrene products include injection-molded eating utensils, audiocassette holders, and cases for packaging compact discs.
Is Styrofoam easily biodegradable?
Is styrofoam biodegradable? While styrofoam technically does break down into smaller pieces, it is not a natural material and thus cannot be broken down by microorganisms. Because styrofoam is a polystyrene-based product, it will never fully decompose and instead will remain in a landfill for hundreds of years.
Styrofoam™ is the 5th largest component of hazardous waste. broken or combusted. The release of Styrofoam's™ chemicals can contribute to the breaking down of the ozone layer. few communities offer this option at this time.
The #6 identifies the resin of the plastic which makes polystyrene, but the arrows around the number do not mean that it is recyclable. This type of plastic is either hard of soft (foam, also known as Styrofoam). Both should go in the landfill.
1927, so called because it is a polymer of styrene (see styrene).
High compressive strengths of up to 60 psi make these foam blocks durable and long-lasting and able to stand up to harsh conditions without deterioration. Styrofoam's comprehensive resistance at 1% deformation ranges from 2.2 psi to 18.6 psi.