Maya Ellison
Plastic products are often stamped with a number, known as a resin code, which indicates the type of resin used to produce the plastic. These numbers range from 1 to 7 and are used to identify the type of plastic for recycling purposes. While the presence of a resin code does not necessarily mean that the product can be recycled, the number inside the triangle is indicative of its recyclability. Generally, plastics numbered 1 and 2 are the most widely accepted for recycling, while plastics numbered 7 are rarely recycled as they encompass multiple plastic types that are difficult to source separately.
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What You'll Learn
- Plastic resin codes are numbers 1-7 inside a triangle of arrows
- Type 1 and 2 plastics are recyclable and can be tossed into standard bins
- PET plastic is used for water and soda bottles and can be recycled
- HDPE plastic is used for milk jugs and shampoo bottles and can be recycled
- Number 7 plastics are a catch-all category and are almost never recycled
Plastic resin codes are numbers 1-7 inside a triangle of arrows
Plastic resin codes are numbers 1–7 inside a triangle of arrows. These numbers indicate the type of resin used to produce the plastic. The presence of a resin code does not necessarily mean that the product can be recycled. It is the number inside the triangle that is important, as each number corresponds to a different type of plastic.
Type 1 plastics, or PET/PETE, can be recycled and are used to make bottles for soda, water, and other drinks. They are also used for cooking oil containers, plastic peanut butter jars, and other food containers. Type 2 plastics, or HDPE, can also be recycled and are used to make milk jugs, shampoo bottles, detergent bottles, and other cleaning product containers.
Type 3 plastics, or PVC, are soft and flexible and are used for a wide range of household products, including plastic tubing, kids' toys, plastic trays, and furniture. Type 3 plastics cannot be recycled. Type 4 plastics, or LDPE, are used for plastic wrappings, grocery bags, and bread and produce bags, among other things. Type 4 plastics can sometimes be recycled.
Type 5 plastics, or PP, are used for food containers such as yoghurt, sour cream, and margarine tubs, as well as straws, rope, carpet, and bottle caps. Type 5 plastics can sometimes be recycled. Type 6 plastics, or PS, are used to make disposable coffee cups, packing peanuts, coolers, and to-go food containers. Type 6 plastics can sometimes be recycled.
Type 7 plastics are a catch-all for all other types of plastics that don't fall into the other categories, including bioplastics and plastics made from multiple types of plastic. Type 7 plastics are rarely recycled as they are not one specific type, which makes them hard to separate.
In addition, it is worth noting that all plastics can be recycled through a process called pyrolization, where the plastics are heated in an oxygen-free environment to prevent burning. This process can be used to produce new plastics, fuel, and other derivatives. Furthermore, recycling rules may vary based on location, so it is important to check with your local recycling center to understand which types of plastics they collect.
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Type 1 and 2 plastics are recyclable and can be tossed into standard bins
Plastic items are often stamped with a resin code, which is a number between one and seven inside a small triangle made of arrows. This code provides important data about the used resin and recyclability of the item. However, the presence of a resin code doesn't necessarily mean that the product can be recycled. It is the number inside the triangle that indicates whether the plastic can be recycled.
Type 2 plastics, also known as HDPE (high-density polyethylene), have a high strength-to-density ratio, resulting in superb wear resistance. They can withstand heating and freezing, making them suitable for various weather conditions. Type 2 plastics are commonly used for sturdy bottles for cosmetics and household cleaners. They can be reused without any harm, making them safe and efficient for manufacturing various items.
It is important to note that while Type 1 and 2 plastics are generally recyclable, there may be variations depending on your municipality's guidelines. Always check with your local recycling guidelines to ensure you are properly disposing of your plastics.
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PET plastic is used for water and soda bottles and can be recycled
Plastic products are often stamped with a resin code, a number between one and seven inside a small triangle made of arrows. Each number corresponds to a different type of plastic. Polyethylene terephthalate, also known as PET, is often denoted with "1" on the bottle. PET is used to make bottles for soda, water, and other drinks. It is also used for cooking oil containers, plastic peanut butter jars, and containers for other popular food items.
PET plastic bottles can be recycled and turned into many useful items, helping reduce waste and promote a more sustainable way of living. They can be recycled to make items like clothing, insulation, and furniture. PET plastic bottles are also safe to be reused at home, as long as they are properly cleaned to remove any harmful chemicals that can leach from the plastic. They can be reused as storage containers for non-food items, such as craft supplies, construction materials, or even as watering cans for plants. However, it is important to note that PET bottles may start to degrade and leach chemicals into the contents after repeated use or exposure to high temperatures.
The soft drinks industry urges people to recycle their PET plastic bottles, and 70% of soft drinks are now packaged in PET bottles. The industry is working with organisations such as RECOUP to innovate in the design of PET plastic bottles. For example, PET plastic bottles have been redesigned to be 30% lighter than 15 years ago, and increasing amounts of recycled plastic are used to manufacture the bottles themselves.
In addition to recycling, there are other ways to reuse PET plastic bottles. For instance, they can be repurposed for storing craft supplies, construction materials, fishing gear, and durable home storage containers. They are also ranked as the 'most practical', 'most versatile', and 'most convenient' packaging type by over 20% of respondents in a YouGov survey.
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HDPE plastic is used for milk jugs and shampoo bottles and can be recycled
Plastic products are often stamped with a resin code, which is a number between one and seven inside a small triangle made of arrows. The number inside the triangle indicates the type of plastic, with each number corresponding to a different type. HDPE (High-Density Polyethylene) plastic is identified by the number 2 and is widely used in a variety of industries and daily life. Its durability, chemical resistance, and recyclability make it a versatile and eco-friendly material.
HDPE plastic is commonly used for milk jugs, shampoo bottles, and detergent containers due to its high strength and rigidity. It is also resistant to corrosion and UV light, making it suitable for products that need to withstand harsh environments. HDPE plastic is safe for storing perishable goods and can be blow-moulded into different shapes, making it a popular choice for milk bottles with handles.
HDPE plastic can be recycled and is accepted by most recycling centres, households, and businesses. The recycling process for HDPE involves sorting, cleaning, shredding, melting, and manufacturing. The recycled HDPE can be used to create new products such as recycling bins, plastic lumber, and pipes. In the UK, 76% of HDPE milk bottles were recycled in 2010.
While HDPE plastic is recyclable, it is important to note that not all recycling centres or municipalities may accept it. It is always a good idea to check with your local council or recycling guidelines to ensure that HDPE plastic can be properly recycled in your area. Proper recycling of HDPE plastic helps to reduce waste and promote the reuse of this versatile material.
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Number 7 plastics are a catch-all category and are almost never recycled
Plastic products are often stamped with a resin code, which is a number between one and seven inside a triangle made of arrows. Each number corresponds to a different type of plastic. While in theory, almost all plastic can be recycled, in practice, this is not always the case.
Number 7 plastics are a catch-all category for any type of plastic that doesn't fit into the first six categories. Products stamped with a 7 are often made of multiple plastic types or other hard-to-recycle plastics. This includes things like Styrofoam, shrink wrap, and manufacturing scrap, which require specialized handling. It also includes polycarbonates, which are thermoplastics made from polymers with carbonate groups in their structure. They are translucent, pliable, and used in windows and eyewear, among other things.
While polycarbonates can technically be recycled, it is unlikely that they can be put in your curbside bin. You would need to check with your local authority first. Other number 7 plastics, like polylactic acid (PLA), a biodegradable plastic used in food packaging, cannot be recycled with your general plastic recycling as it will contaminate other plastics. Instead, it must be disposed of in an industrial compost operation.
Overall, number 7 plastics are rarely recycled due to the high costs and low efficiencies of recycling small quantities of plastics, as well as the difficulty of separating and processing multiple plastic types and layers.
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Frequently asked questions
The numbers, usually found with a triangle symbol on a plastic container, indicate the type of resin used to produce the plastic. The presence of a resin code doesn't necessarily mean that the product can be recycled. It's the number inside the triangle that counts, because each number corresponds to a different type of plastic.
Generally, most recyclers accept plastics #1 and #2. PET or PETE, used to make bottles for soda, water, and other drinks, can be recycled. HDPE plastics, used to make milk jugs, shampoo bottles, and detergent bottles, are also extremely common and can be recycled. LDPE, used for plastic bags, can sometimes be recycled. PP, used for food containers, straws, and rope, can also sometimes be recycled.
Plastics with the #7 number are almost never recycled as they are made of multiple plastic types or out of other types of plastic that can't be easily recycled. PVC, used for plastic tubing, kids' toys, and furniture, cannot be recycled. Bioplastics, which are designed to break down in commercial composting facilities, are also non-recyclable.
