Maya Ellison
Bisphenol A, or BPA, is an industrial chemical used in the manufacturing of certain plastics and resins. It is often found in polycarbonate plastics, which are hard, clear (or clear-tinted), and unbreakable. While BPA has been phased out of most plastic manufacturing, it is still important to know how to identify if a plastic product contains BPA. One way to do this is by looking at the recycling codes, which are usually found inside a triangle on the underside of plastic products. Recycling codes 1 (PET), 2 (HDPE), 4 (LDPE), and 5 (PP) are typically BPA-free, while codes 3 (PVC) and 7 (OTHER) may contain BPA. However, not all plastics with a 7 designation contain BPA, as it is a broad category that includes various materials. Additionally, some manufacturers may label their products as BPA-free as part of their marketing strategy.
| Characteristics | Values |
|---|---|
| How to identify recycled plastic | Look for a number inside a triangle, usually found on the bottom of the object |
| Recycling codes for BPA-free plastics | 1, 2, 4, 5 |
| Recycling codes that may contain BPA | 3, 6, 7 |
| Other indicators | Opaque plastics are likely BPA-free; clear, hard, and unbreakable plastics may contain BPA |
| Other names for BPA | Bisphenol A, an industrial chemical used in plastic manufacturing since the 1960s |
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What You'll Learn
- Polypropylene or polyethylene terephthalate (recycling code 1) is often BPA-free
- Polyethylene (recycling code 1) is also usually free of BPA
- Recycling code 4 designates Low-Density Polyethylene, or LDPE, which is typically BPA-free
- Polycarbonate plastics will have a number 7 on them, but not all plastics labelled with a 7 contain BPA
- If a product is labelled as 'handwash only', it's probably BPA-free
Polypropylene or polyethylene terephthalate (recycling code 1) is often BPA-free
Recycling codes, sometimes called resin identification numbers, are usually visible inside the recycling triangle found on the underside of plastic products. Each code is associated with a particular kind of plastic and provides information on the material's composition and the possibility of BPA presence.
Polypropylene, also known as PP, is frequently used in packaging, pharmaceutical bottles, and food containers. It is known for its heat resistance and adaptability to a range of applications. PP is considered safe for reuse and is BPA-free. It is recyclable through some curbside recycling programs, but only about 3% of PP products are currently being recycled in the US. Recycled PP is used to make landscaping border stripping, battery cases, brooms, bins, and trays.
Polyethylene terephthalate, or PET, is a common plastic for single-use bottled beverages due to its low cost, lightweight, and ease of recycling. It is also used in food containers, beverage bottles, and some fabrics. PET does not degrade easily during recycling and has a lower risk of trapping decomposition products that can leach out. It is safe and free of BPA.
By knowing the recycling codes, individuals can make healthier and more conscious choices when selecting plastic products.
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Polyethylene (recycling code 1) is also usually free of BPA
Polyethylene (recycling code 1) is also usually free of Bisphenol A (BPA). This is good news, as plastics with recycling code 1 are commonly used for single-use disposable items like water bottles, takeout containers, and beverage bottles.
BPA is a chemical used in the manufacture of polycarbonate plastic. It has been used since the 1960s to make products like reusable water bottles, food storage containers, drinking glasses, pitchers, baby bottles, and sippy cups. There have been concerns about the potential health effects of BPA, as it may affect the brain, the prostate gland of fetuses, infants, and children, and it might increase blood pressure. However, the U.S. Food and Drug Administration (FDA) has found that BPA is safe at the low levels sometimes found in foods.
The Society of the Plastics Industry (SPI) created a simple numbering system, called SPI codes, to help identify and sort various plastics for recycling. These are the plastic recycling numbers 1-7, which appear in the center of the recycling symbol on most plastic items and are used to quickly identify and sort plastics for collection and recycling. Recycling codes 1, 2, 5, and 6 represent plastics that are commonly recycled and collected in residential and community recycling collection programs.
While it is important to be aware of the potential presence of BPA in some plastics, it is also important to note that not all plastics with a "7" designation contain BPA. This is a broad category that includes a variety of materials, some of which are BPA-free, such as acrylic, melamine, and polypropylene.
To identify if a plastic product is BPA-free, look for a recycling symbol, usually found on the bottom of the object. This symbol will have a number inside, which corresponds to a different type of plastic and provides information on the material's composition and the possibility of BPA presence. Recycling code 1, or polyethylene, is typically BPA-free.
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Recycling code 4 designates Low-Density Polyethylene, or LDPE, which is typically BPA-free
Recycling codes are a useful way to identify if a plastic product is free of Bisphenol A (BPA). These codes are usually visible inside a small triangle made of arrows, often found on the underside of plastic products. Each code is associated with a particular kind of plastic and provides information on the material's composition and the possibility of BPA presence.
While LDPE is recyclable, it is important to note that it may not be accepted by all recycling programs. Some communities are starting to accept LDPE through curbside programs, but it is always good to check with your local authority or recycling guidelines.
When it comes to BPA, LDPE is considered a safe choice for food storage. It does not release harmful chemicals, and its resistance to acids makes it suitable for storing food without the worry of chemical leaching. This is particularly important as some plastics, such as polycarbonate (with the code 7), have raised concerns over BPA leaching into food or water.
By understanding the recycling codes and the specific properties of LDPE, individuals can make informed choices about the plastics they use and promote a healthier and more environmentally conscious lifestyle.
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Polycarbonate plastics will have a number 7 on them, but not all plastics labelled with a 7 contain BPA
Polycarbonate plastics, which are hard, clear (or clear-tinted), and unbreakable, are known to contain BPA. They are used to make products like reusable water bottles, food storage containers, drinking glasses, pitchers, baby bottles, and sippy cups. BPA exposure can potentially affect the brain, the prostate gland of fetuses, infants, and children, and it may increase blood pressure. However, the U.S. Food and Drug Administration (FDA) states that BPA is safe at the low levels sometimes found in foods. Polycarbonate plastics will have a number 7 on them, but not all plastics labelled with a 7 contain BPA.
The number 7 plastic recycling code is a catch-all for various plastics not commonly collected in recycling programs. It includes acrylic, SAN, Tritan, PLA compostable plastic blends, SAN and NAS blends, and polycarbonate. Only polycarbonate items are made using BPA, while the other #7 plastics are BPA-free. These include Tritan, acrylic, melamine, PLA compostables, and plastic blends.
To identify if a plastic product is BPA-free, you can look up the recycling codes, sometimes called resin identification numbers, usually found inside the recycling triangle on the underside of plastic products. Each plastic object has a resin identification code, often called the recycling symbol, printed on it. Look for a number inside the arrow-shaped triangle, which is usually found around the bottom of the object. While polycarbonate plastics will have a number 7 on them, not all plastics with this designation contain BPA. It is a broad category that includes various materials.
If you want to avoid BPA, it is best to choose plastics with recycling codes 1 (PET), 2 (HDPE), 4 (LDPE), and 5 (PP). Code 3 (PVC) may contain BPA, so use these products with caution. While Code 6 (PS) is generally safe, excessive heat may cause issues. Code 7 (OTHER) requires closer examination to determine its safety.
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If a product is labelled as 'handwash only', it's probably BPA-free
When it comes to plastic products, the recycling codes or resin identification codes are a helpful way to determine if a product is BPA-free. These codes are usually found inside a triangle on the bottom of plastic objects. While some types of plastic are known to contain BPA, such as polyvinyl chloride (PVC) with code "3" and polycarbonate with code "7", not all plastics with these codes are BPA-positive. In fact, many "7" plastics are BPA-free, including Tritan, acrylic, melamine, PLA compostables, and plastic blends.
Now, if a product is labelled as "handwash only", it's likely made from a type of plastic that is considered more delicate and prone to damage if washed in a dishwasher. This suggests that the product is not made of polycarbonate, as this type of plastic is known for its durability and toughness, often being used in items like bulletproof glass and unbreakable tableware. Therefore, a "handwash only" label indicates a lower likelihood of BPA presence, as BPA is primarily found in polycarbonate plastics.
Additionally, opaque plastics are generally BPA-free, so their opaqueness can be a visual indicator. Also, newer plastic products are more likely to be BPA-free and labelled as such, so the product's age is a factor to consider. If a product is labelled as microwave-safe or unbreakable, it may be more likely to contain BPA, as these are characteristics often associated with polycarbonate plastics.
It's worth noting that while recycling codes are helpful, they don't always provide a definitive answer. For instance, code "7" is a catch-all category for various types of plastics that don't fit into codes "1" to "6". So, while most "7" plastics are BPA-free, it's essential to investigate further, especially if there's no explicit "BPA-free" label.
In summary, if a plastic product is labelled as "handwash only", it's likely made from a more delicate type of plastic that is less likely to contain BPA. This, combined with other indicators like opaqueness, age, and the presence of a "BPA-free" label, can help you make an informed decision about the product's safety regarding BPA.
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Frequently asked questions
Check the recycling codes, sometimes called resin identification numbers, on the bottom of the product. These are usually found inside a triangle. If you see 1, 2, 4, 5, or 6, the product is likely BPA-free. If you see 3 or PVC, the product may contain BPA. If you see 7, the product may or may not contain BPA, as this is a broad category.
BPA stands for Bisphenol A, an industrial chemical used to make certain plastics and resins since the 1960s. It is an organic synthetic compound used to manufacture plastics containing polycarbonate.
BPA can be harmful to humans and may affect the brain and the prostate gland of fetuses, infants, and children. It might also increase blood pressure.
Polypropylene ("5"), polyethylene ("1"), and polyethylene terephthalate ("1") are often devoid of BPA. Low-density polyethylene ("4") is also generally considered BPA-free and safe for food storage.
Polyvinyl chloride ("3" or PVC) and polycarbonate ("7") often contain BPA.
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