Sofia Martinez
Whether or not you need to separate metal and plastic for recycling depends on your local recycling program. Some areas have single-stream recycling, where all materials are placed in one bin, while others have multi-stream recycling, where different materials must be separated into different bins. It's important to check with your local program to find out their specific requirements. In general, only clean materials can be recycled, and certain types of plastic may not be accepted.
Do I have to separate metal and plastic for recycling?
| Characteristics | Values |
|---|---|
| Recyclable metal items | Aluminum cans and foil, steel, lead-acid batteries |
| Plastic recycling rate in the US in 2018 | 8.7% |
| Plastic items that cannot be recycled | Plastic bags, plastic wrap/film, plastic utensils, compostable plastics |
| Separation of metal and plastic for recycling | Depends on the local recycling program and company |
| Other requirements for recycling | Materials must be clean and free from food residue or contamination |
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What You'll Learn
Local recycling programs differ
Whether you need to separate metal and plastic for recycling depends on your local recycling program. Local recycling programs differ, and while some may accept comingled materials in one bin, others require that you separate your recycling into different categories. For example, some programs may require that you separate cardboard from other materials, while others may have separate bins for paper and cardboard, and another for plastic, metal, and glass.
Some areas have single-stream recycling, where all recyclables are placed in one bin, while others have multi-stream recycling, where different materials are sorted into different bins. It's important to check with your local recycling program to find out which types of materials they accept and how they need to be separated and prepared for collection. For instance, some programs may accept styrofoam in curbside recycling, while others may require you to drop it off at a specific location.
Additionally, some materials, such as aluminum cans and foil, are generally recyclable, but your local program may have specific rules regarding their preparation. For instance, aluminum cans are typically not crushed before recycling in areas with single-stream recycling, as they can be harder to detect during sorting. However, in areas with multi-stream recycling, crushing cans is not an issue.
It's also important to note that only clean materials can be recycled, so it's essential to remove any food residue or contaminants before placing items in the recycling bin. By following the guidelines of your local recycling program, you can ensure that your recyclables are properly sorted and prepared, contributing to a more sustainable planet.
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Clean materials only
Clean materials are vital to the recycling process. Recycling facilities do not clean recyclables, so it is important to ensure that materials are empty, clean, and dry before placing them in the bin. Leftover food or liquid in recyclables can cause issues such as mould, bacteria, and rodents, rendering the material unrecyclable. Even a small amount of food residue can contaminate other materials, so it is best to avoid this altogether. Scraping containers with a spatula or paper towel is often sufficient to clean them without water. If necessary, fill the container with water, let it sit, then shake it out before pouring the leftover liquid down the sink. It is acceptable for some water droplets to remain in the recyclables when they are placed in the bin, but it is important to avoid larger amounts of liquid.
Pizza boxes can be recycled, even if they have some grease on them, as long as any large pieces of food are removed. Flattening boxes before placing them in the bin is also recommended. Envelopes with plastic windows can be recycled, but it is best to rinse or scrape off any food residue first. Similarly, aluminium foil can be recycled, but food residue should be removed.
It is important to separate different types of materials, such as metal and plastic, to ensure they are properly recycled. However, it is not always necessary to separate metal bottle caps from glass bottles, as some localities allow the caps to be left on. It is best to check with your local recycling program to find out their specific guidelines.
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Plastic types matter
Plastic is notoriously difficult to recycle, and not all types of plastic are recyclable. In fact, in 2018, only 8.7% of the 35 million tons of plastic generated in the United States was recycled.
There are seven different types of plastic used around the world, which differ in size, colour, usage, and disposal. Before being recycled, plastics are sorted according to their resin type, either manually or using mechanised automated processes, or even by colour.
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 for cooking oil containers, plastic peanut butter jars, and other food containers. PET can be recycled into flakes, which can then be spun into yarn and used to manufacture clothes and other textiles. Alternatively, PET can be recycled into more PET bottles, as it is one of the few polymers that can be recycled into the same form.
HDPE plastics are also extremely common and can be recycled. They are used to make milk jugs, shampoo bottles, cleaning product containers, and detergent bottles.
PP is sometimes recyclable and 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.
PS, or polystyrene, is sometimes recyclable but is often not accepted in curbside recycling programmes as it is hard to process. It is used to make disposable coffee cups, packing peanuts, coolers, and to-go food containers.
PVC, or polyvinyl chloride, is not recyclable in normal collections. It is a soft, flexible plastic used for a wide array of household products.
LDPE, or low-density polyethylene, is technically recyclable, but many municipalities won't accept it in curbside recycling bins as it is cheap, low-quality, and can tangle in recycling machinery. It is used to make plastic bags.
Other non-recyclable plastics include bioplastics, composite plastic, plastic-coated wrapping paper, polycarbonate, and cling film.
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Metal is recyclable
Other types of steel, such as hot-rolled and cold-rolled steel, can also be recycled. Hot-rolled steel is the most common type, usually made from scrap metal, while cold-rolled steel is made from recycled steel that has been cold-rolled into thin sheets. Steel can be melted down and reformed into new steel or used to create new products such as cars or appliances.
Copper is another valuable recyclable metal as it is a good conductor of electricity and heat, making it ideal for electrical wiring. Copper can be recycled by melting it down and reforming it into new products, helping to conserve natural resources and reduce pollution. Brass, an alloy of copper and zinc, is also recyclable and can be melted down and reformed into new products, reducing waste and saving energy.
Bronze, an alloy of copper and tin, is recyclable and valuable. Recycling bronze helps reduce waste and conserve resources. Silver, a valuable metal often used in jewellery and decorative items, can also be recycled into products like coins or utensils. Gold, another valuable metal, is often recycled due to its resistance to corrosion and can be melted down and purified for reuse.
Overall, recycling metal helps reduce waste, protect the environment, and conserve natural resources. It also requires less energy than creating new metal from raw materials, reducing carbon emissions and providing financial rewards for consumers and manufacturers.
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Cardboard is separate
The separation of different materials for recycling is important to ensure that they are properly recycled and do not end up in landfills. While some communities may have co-mingled bins for convenience, separating materials reduces contamination and ensures that materials are recycled correctly.
When it comes to cardboard, it is essential to keep it separate from other recyclables. Cardboard is one of the easiest and most common materials to recycle, with a high recycling rate of 71%-76% in 2023. It is a high-quality, versatile material that can be recycled multiple times, reducing processing pollution by 95%.
To recycle cardboard correctly, it is important to keep it clean and dry. Wet or greasy cardboard, such as pizza boxes, is considered a contaminant and should be avoided. Before placing cardboard in the recycling bin, break it down and flatten it to save space and keep it dry. Remove any plastic packaging or bags, as well as any food scraps or residue, to ensure the cardboard remains clean.
By keeping cardboard separate and preparing it properly for recycling, we can ensure that it is given new life as new products, such as cereal boxes, cake mix boxes, shipping boxes, or even toilet paper. This helps reduce waste and promotes a more sustainable future.
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Frequently asked questions
It depends on your local recycling program. Some areas have single-stream recycling, where all materials go into one bin, while others have multi-stream recycling, where you need to separate your recyclables into different bins. Check with your local program to find out their specific requirements.
Many items can be recycled, including aluminum cans, foil, cardboard, glass, paper, and plastic. However, it's important to note that not all types of plastic are accepted by community recycling programs. Some examples of recyclable plastic items include soda bottles and plastic bags.
Yes, some items have specific requirements for recycling. For example, pizza boxes can be recycled if they are free of food scraps and grease, and plastic bags may need to have the sealable zippers removed before recycling. Additionally, items with food debris or residue generally cannot be recycled, so it's important to clean them before placing them in the recycling bin.
