Alexei Volkov
Black plastic food trays are a significant contributor to plastic waste due to their widespread use and the challenges associated with recycling them. This type of plastic is often used for food packaging, including trays, tubs, and bottles, but it poses unique difficulties for the recycling process. The inability of infrared technology to penetrate black plastic hinders the identification and sorting process, leading to potential contamination of other recyclable materials. Additionally, black plastic is often made from special types of plastic that are not easily recyclable, further complicating the issue. While some local councils and recycling companies accept black plastic, others specifically exclude it due to the challenges mentioned above and the low value of this material in the market. As a result, consumers are often left confused about the proper way to dispose of black plastic trays. This paragraph aims to delve into the complexities of recycling black plastic food trays and explore potential solutions to reduce their environmental impact.
| Characteristics | Values |
|---|---|
| Recyclability | Black plastic food trays cannot be recycled |
| Reasons | Black plastic cannot be identified by automatic sorting machines |
| Black plastic does not reflect light, so it cannot be seen and sorted by optical scanners | |
| Infrared cannot penetrate black plastic, so the type of plastic cannot be determined | |
| Black plastic is not valuable and has little value on the market | |
| Black plastic trays are often made of a special type of plastic that cannot be easily recycled | |
| Alternatives | Use a sandwich tin or reusable wrappers |
| Buy ready meals with packaging coloured with alternative black dye | |
| Use packaging made from by-products from processing sugarcane, wheat, and bamboo |
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What You'll Learn
Why black plastic food trays can't be recycled
Black plastic food trays are often not recycled because they are typically undetectable by automatic sorting machines. This is because infrared technology cannot penetrate or "see" black plastic, and therefore cannot determine the plastic type based on how the laser beam interacts with the plastic. As a result, black plastic trays often end up in landfills instead of being recycled.
In the recycling process, plastic items are sorted by optical scanners that use the reflection of light to identify the types of plastics. Black plastic does not reflect light, so it cannot be seen or sorted by the scanners. This could lead to contamination of other materials, such as glass bottles.
Additionally, black plastic is often made with a special type of plastic that is not easily recycled. For example, microwave food trays, which are usually black, are made with a specific type of plastic that cannot be easily recycled. This makes it more challenging to recycle black plastic trays, even if they are separated from other waste streams.
The use of carbon black, the most common pigment used to dye plastic black, further complicates the recycling process. Carbon black plastic is undetectable by near-infrared scanners, which are commonly used in materials recovery facilities (MRFs) to sort recyclables. This means that even if black plastic trays are placed in recycling bins, they may not actually be recycled and could end up in landfills.
While some companies are working on solutions, such as using NIR technology to detect a special type of black plastic, black plastic food trays remain challenging to recycle. In the meantime, consumers are encouraged to reduce and reuse black plastic items and choose products packaged in clear or light-colored plastic, which are more easily recyclable.
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How to avoid black plastic food trays
Black plastic food trays are notoriously difficult to recycle. This is because they cannot be identified by automatic sorting machines, which use infrared to identify different types of plastics. Black plastic does not reflect light, so it cannot be seen or sorted by these machines. This means that black plastic trays often cannot be recycled through your local council.
To avoid black plastic food trays, there are several steps you can take:
- When shopping for ready meals, avoid those packaged in black plastic trays. Choose alternatives with recyclable packaging, such as cardboard or tomato leaves.
- Make your own meals in batches and freeze them in reusable containers instead of buying ready meals. This reduces your reliance on single-use packaging and gives you more control over the environmental impact of your food choices.
- Support companies that are actively working to reduce their black plastic packaging. For example, Waitrose has committed to cutting out black plastic packaging from their own-label products, and Marks & Spencer has trialled ready meals in packaging coloured with alternative black dyes that are detectable by sorting machines.
- Contact your local council and express your concern about the lack of recycling options for black plastic. Encourage them to implement changes or support initiatives that enable the recycling of black plastic trays.
- Advocate for extended producer responsibility legislation, which would require manufacturers to consider the end-of-life treatment of their products, including recyclability. This would incentivize companies to use more sustainable packaging options.
- Spread awareness about the issues with black plastic trays among your friends, family, and community. Encourage others to avoid black plastic and support more environmentally friendly alternatives.
Remember, the most effective way to reduce the environmental impact of your food choices is to "reduce and reuse" rather than just recycling. Investing in reusable containers, such as sandwich tins or wrappers, is a great way to minimize your waste and avoid single-use plastics.
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How to identify recyclable plastic
Plastic is one of the most complicated materials to recycle, and consumers often don't know which types can be recycled and in which ways. The first step in identifying recyclable plastic is to look for a resin code, usually a number between one and seven inside a small triangle made of arrows. The number inside the triangle is what counts, as each number corresponds to a different type of plastic. The general rule of thumb is that the lower the resin code, the more likely the plastic is to be easily recyclable.
Plastics #3 to #6 are more difficult to recycle, and some recycling centres do not process them. Plastic #7 is even more challenging to recycle and is almost always excluded. The most widely recycled plastic in the world is PET, which is used to make bottles for soda, water, and other drinks. It is also used to make cooking oil containers, plastic peanut butter jars, and containers for other popular food items. PET products can be recycled. HDPE plastics are also extremely common and are used to make milk jugs, shampoo bottles, cleaning product containers, and detergent bottles. HDPE products can be recycled and are accepted at most recycling centres worldwide. LDPE is usually what plastic bags are made from, and while most plastic bags are not recyclable, some companies and recycling centres are investigating how to recycle them.
PP (polypropylene) is used to make food containers for products like yoghurt, sour cream, and margarine. It is also made into straws, rope, carpet, and bottle caps. PP products can sometimes be recycled and are gradually becoming more accepted by recyclers. PVC is a soft, flexible plastic used for a huge array of household products, but PVC products cannot be recycled, and most consumer recyclers will not take them. Styrofoam products are made out of PS plastic and are commonly used to make disposable coffee cups, packing peanuts, coolers, and to-go food containers. PS products can sometimes be recycled, but it requires specialised handling.
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Alternatives to black plastic food trays
Black plastic food trays are notoriously hard to recycle. This is because they are often made from recycled electronic materials that contain toxic flame retardants and other chemicals. They are also hard to identify using automatic sorting machines, which use infrared or light reflection to sort plastics.
Clear PET plastic meat trays
Clear PET plastic meat trays are a good alternative to black plastic food trays. They are fully recyclable and typically slightly more affordable than fiber trays. They are also lightweight, durable, and shatter-resistant. However, they might be more expensive than black plastic trays.
Fiber meat trays
Fiber meat trays are another option. They are typically available in "natural" (a light brown color) or white. The natural option may be more appealing to customers who associate it with traditional compostable products. Fiber trays are also probably the most budget-friendly option, although adding a compostable liner can increase the cost. However, fiber trays are softer than foam trays and may not work with auto-wrapping equipment.
Reusable containers
Reusable containers, such as sandwich tins or glass, stainless steel, or ceramic containers, are a more sustainable option than single-use black plastic food trays. Tupperware or similar containers can be used to store or heat food, and they can be washed and reused multiple times, reducing waste.
Compostable or biodegradable containers
Compostable or biodegradable containers, such as those made by Vegware, are another alternative to black plastic food trays. These containers are made from renewable or recycled materials and can be composted after use. However, it's important to note that they may not be accepted in your local recycling program and may require special collection.
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What to do with black plastic food trays
Black plastic food trays are notoriously difficult to recycle. This is because automatic sorting machines use infrared to identify the types of plastics, and black plastic cannot be identified by these lasers as it does not reflect light. As a result, black plastic trays often cannot be recycled through your local council and should be avoided where possible.
However, some local councils do accept black plastic trays, so it is worth checking with your local authority to see if they can be recycled in your area. If your local council does not accept them, you could try contacting a private recycling company, as some of these do recycle black plastic.
Another option is to reuse your black plastic food trays. For example, you could use them as seed trays or to store small items such as screws or beads. You could also cut them into strips and use them as plant markers in your garden, or use them as a base for arts and crafts projects.
To reduce your consumption of black plastic food trays, you can avoid buying ready meals packaged in black plastic and opt for alternatives with recyclable packaging. Making your own meals in batches and freezing them in reusable containers is a good way to do this. You can also support campaigns that pressure supermarkets to provide alternatives to black plastic packaging and sell milk in reusable containers.
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Frequently asked questions
Black plastic cannot be identified by automatic sorting machines and therefore is not currently recycled. Infrared can't penetrate black plastic, so there is no way to determine the plastic type based on how the laser beam interacts with the plastic.
When shopping for ready meals, avoid the ones with black plastic. Check whether the alternative packaging is collected for recycling by your local authority. You can also make your own meals in batches ahead of time and freeze them in a reusable container.
All plastic containers can be recycled, including plastic fruit punnets and takeaway containers. Rigid hard plastic trays can be recycled while soft polystyrene trays cannot.
