
Plastic is everywhere, and recycling it is one of the most complex processes. When it comes to determining if a plastic item is recyclable, most people look for the chasing arrows symbol or the resin identification code (RIC), which is a number between one and seven inside a small triangle. However, the presence of a code doesn't guarantee recyclability, and even if a product has a number, it might not be recyclable at your local facility. No. 6 plastic, or polystyrene, is a lightweight material that is difficult to recycle and often ends up in the environment, where it can cause harm. So, is No. 6 plastic recyclable, and what are the implications if it's not?
| Characteristics | Values |
|---|---|
| Plastic Number | 6 |
| Type | Polystyrene |
| Other Names | Styrofoam, packing peanuts |
| Items Made From No. 6 Plastic | Disposable cups, takeout containers, egg cartons, Styrofoam insulation |
| Recyclability | Technically recyclable but not widely accepted by recycling programs due to difficulty and cost of processing; check with local programs |
| Disposal Warning | Should not be burned as it releases harmful, ozone-depleting gases |
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What You'll Learn

No. 6 plastic can be reused and recycled, but it is difficult and costly
Plastic recycling is a complex process, and consumers often don't know which types of plastic can be recycled and how. To determine whether a plastic product can be recycled, one must look at the numbers inside the small triangle made of arrows, known as the Resin Identification Code (RIC) system. Each number corresponds to a different type of plastic, of which there are seven categories in total.
No. 6 plastic, or polystyrene, is a lightweight material that is difficult to recycle. It is often used for disposable cups, takeout containers, packing peanuts, egg cartons, and Styrofoam insulation. While No. 6 plastic can technically be reused and recycled, the process is challenging and expensive, and not widely available. Most curbside recycling programs do not accept this type of plastic due to its inability to biodegrade and the difficulty in sanitizing it.
However, some local areas may offer styrofoam recycling for No. 6 plastic. To increase the chances of successful recycling, it is important to ensure that the plastic is clean, as dirty containers may be rejected and sent to the trash. Recycled No. 6 plastic cannot be used for food containers again but can find new purposes, such as outdoor furniture, roofing tiles, or coat hangers.
It is worth noting that the recycling landscape varies across different locations. Some areas have more comprehensive recycling programs than others, and it is essential to check with local guidelines and recycling centers to understand the specific rules and capabilities in your area.
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Polystyrene is a type of No. 6 plastic
Plastic #6, also known as polystyrene or PS, is a thermoplastic polymer commonly used for packaging and insulation. It is often found in foam packaging, food containers, disposable foam plates, trays, and hot beverage cups. Polystyrene is lightweight and cheap to produce, making it widely used in various applications. However, it is essential to note that polystyrene is difficult to recycle and is not always accepted by standard recycling programs.
Polystyrene comes in two forms: solid plastic and rigid foam. The most common type is expanded polystyrene (EPS), which is created by expanding and fusing polystyrene plastic beads. This results in the familiar styrofoam or packing peanut-like texture. Polystyrene quickly accumulates an electrostatic charge, which causes it to stick to various surfaces.
While polystyrene can technically be recycled, it is not as easily accessible for everyday people. Many home recycling programs do not accept it, so individuals must find specialist recyclers to properly dispose of it. These specialist recyclers often have specific requirements, such as accepting only clean, white polystyrene free of any tape, plastic film, labels, or glued-on cardboard.
The difficulty in recycling polystyrene is due to its inability to biodegrade. When polystyrene breaks up, it easily finds its way into the environment, where it can cause harm. Polystyrene contains styrene, which can leach toxic chemicals when heated. Styrene has been detected in human fat tissue samples and is known to cause cancer in animals. Therefore, it is recommended to reduce, reuse, and recycle polystyrene products whenever possible and opt for alternative materials when available.
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No. 6 plastic is used in Styrofoam takeout containers
No. 6 plastic, also known as polystyrene, is a lightweight, rigid material that is often used in Styrofoam takeout containers. While it is possible to recycle No. 6 plastic, it is not as easily accessible as other forms of recycling. This is due to the fact that polystyrene is difficult to sanitise and, as a result, many home recycling programs do not accept it.
To recycle No. 6 plastic, you will need to find a specialist recycler that accepts this type of material. These specialist recyclers usually only take clean, white polystyrene that is free of any tape, plastic film, labels, loose parts, or glued-on cardboard. It is important to separate the polystyrene foam from your regular recycling and cut it into small pieces to maximise space.
It is worth noting that polystyrene is harmful to the environment and can leach toxic chemicals. Due to its lightweight nature, it easily finds its way into the environment, where it can be consumed by animals and end up in the food chain. For this reason, it is important to dispose of No. 6 plastic properly and, if possible, minimise its use by choosing alternative materials.
In some places, there are bans on the sale and distribution of expanded polystyrene (EPS) materials, including takeout containers. This is because EPS materials are difficult to recycle and often end up in landfills or the environment, where they can break into tiny pieces and cause contamination. As a result, it is important to check the regulations in your local area regarding the recycling and disposal of No. 6 plastic and Styrofoam takeout containers.
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No. 6 plastic products should not be burned
No. 6 plastic, or polystyrene, is a lightweight material that is difficult to recycle and often ends up in the environment, where it can cause harm. While No. 6 plastic can technically be reused and recycled, the process is complex and costly, and not widely available. Most curbside recycling programs do not accept this type of plastic.
Despite the challenges of recycling No. 6 plastic, it is important to avoid burning these products. Burning No. 6 plastic releases harmful ozone-depleting gases into the atmosphere. This can have detrimental effects on the environment and human health. Therefore, it is crucial to explore alternative methods for disposing of No. 6 plastic products.
One option is to check if your local area offers specialised styrofoam recycling. Some areas have specific recycling streams for styrofoam, but it is essential to ensure that the plastic is clean before attempting to recycle it. If No. 6 plastic is recycled, it can be used to create products like outdoor furniture, roofing tiles, and coat hangers, but it cannot be used for food containers again.
Another approach is to reduce the consumption of No. 6 plastic products. This can be achieved by opting for reusable alternatives instead of disposable cups, takeout containers, and egg cartons, which are commonly made from polystyrene. By minimising the use of No. 6 plastic, we can reduce the environmental impact and potential health risks associated with this material.
In conclusion, while No. 6 plastic products pose challenges in terms of recyclability, burning them is not a safe alternative. By understanding the hazards of burning these plastics and exploring recycling or waste reduction methods, we can make more informed choices to protect the environment and our well-being.
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Recycling symbols can be misleading
Plastic #6, or polystyrene, is a type of plastic often used in Styrofoam takeout containers. While recycling symbols are meant to provide information on how to recycle products, they can sometimes be misleading.
The recycling process is complex, and consumers often do not know which types of plastic can be recycled and how. This is made more challenging by the fact that recycling symbols are not always standardised across countries or continents. While some places legislate the use of standardised symbols, others only follow a voluntary program. For example, the Green Dot symbol used in some European countries indicates that the producer has made a financial contribution towards the recovery and recycling of packaging but does not mean that the packaging is recyclable or will be recycled.
Furthermore, aspirational recycling, where individuals attempt to recycle products they believe to be recyclable due to unclear labelling, is a growing concern. To avoid this, consumers should be aware that recycling symbols may not always provide clear information on whether a product can be recycled and should check with their local guidelines. For instance, while plastic #6 is generally not recyclable, some local areas may have styrofoam recycling available and accept clean styrofoam products.
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Frequently asked questions
No. 6 plastic, or polystyrene, is technically recyclable, but it is difficult and costly to do so. Most curbside recycling programs will not accept it.
Products that contain No. 6 plastic include disposable cups, takeout containers, packing peanuts, egg cartons, and Styrofoam insulation.
No. 6 plastic is a lightweight material that easily finds its way into the environment, where it can leach toxic chemicals. It has been found in human fat tissue samples dating back to 1986 and is known to cause cancer in animals.











































