
Plastic products are often stamped with a number, usually found within a small triangle made of arrows, which is known as a resin identification code. This number, which ranges from 1 to 7, indicates the type of plastic the product is made from. Plastic number 1, also known as PETE or PET, is one of the most commonly used plastics and can be found in water bottles, food jars, containers, and household cleaning products. While it is relatively safe, it should be stored in a cool environment and not reused.
| Characteristics | Values |
|---|---|
| Plastic type | Polyethylene terephthalate, also known as PETE or PET |
| Resin identification code | #1 |
| Safety | Relatively safe but should be stored in a cool, dry place and not reused |
| Recyclability | One of the most commonly recycled plastics |
| Uses | Water bottles, beverages bottles, food jars and containers, salad dressing and oil bottles, clothes fiber, household cleaning product containers, mouthwash bottles |
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What You'll Learn
- Plastic #1 is recyclable and safer compared to other plastics
- It is known as PETE or PET plastic
- It is used in beverage bottles, food jars, containers, and household cleaning products
- It should be stored in a cool environment and should not be reused
- It should be avoided for microwaving, despite microwave-safe labels

Plastic #1 is recyclable and safer compared to other plastics
Plastic #1, also known as PETE or PET, is one of the most commonly recycled plastics. It is made from polyethylene terephthalate, a thermoplastic polymer resin. Plastic #1 is commonly used in water and beverage bottles, food jars and containers, and household cleaning product containers. It is also used for products like salad dressing and oil bottles, clothes fibre, and mouthwash bottles.
While Plastic #1 is relatively safe compared to other plastics, it should be stored in a cool, dry environment and not reused, especially for food or drink. When heated, it can cause carcinogens to leach into liquids, which can be harmful to health.
The recycling symbol on plastic products indicates the type of plastic and its recyclability. Plastic #1 is widely recycled, and it is important to understand the potential harm caused by different types of plastics to make better choices for health and the environment.
Some safer alternatives to plastic include glass, metal, bamboo, and reusable materials. It is also advisable to avoid plastics with the PC label, as they contain highly dangerous BPA, which has been linked to obesity, cancer, and endocrine problems.
Overall, while Plastic #1 is recyclable and relatively safer, it is important to minimise plastic usage and opt for environmentally friendly alternatives whenever possible.
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It is known as PETE or PET plastic
Plastic #1, also known as PETE or PET, is one of the most commonly used thermoplastic polymer resins. It is typically used for water and beverage bottles, food jars and containers, salad dressing and oil bottles, clothes fibres, and mouthwash bottles. It is also used for household cleaning product containers.
PETE or PET is usually clear in colour and is considered relatively safe. However, it should be kept away from heat to prevent the leaching of carcinogens such as flame retardant antimony trioxide into liquids. It is best stored in a cool environment and should not be reused.
PETE or PET products can be recycled, and they are one of the most commonly recycled plastics. However, it is important to note that the presence of a recycling symbol on a plastic product does not necessarily mean that it can be recycled. The recycling symbol, which is a triangle of chasing pointers with a number inside, indicates the type of plastic the material is made of.
When it comes to choosing plastics, it is recommended to opt for safer alternatives like glass, metal, or bamboo to minimise potential health and environmental risks. Additionally, it is worth mentioning that plastic recycling is a complex process, and not all plastics are equally recyclable.
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It is used in beverage bottles, food jars, containers, and household cleaning products
Plastic #1 refers to polyethylene terephthalate, commonly known as PETE or PET plastic. It is one of the most commonly used thermoplastic polymer resins. Plastic #1 is frequently used in beverage bottles, food jars, containers, and household cleaning products. It is also used for salad dressings, oil bottles, and mouthwash bottles.
PETE is usually clear in colour and is used to make disposable beverage and food containers and bottles. It is relatively safe, but it should be kept away from heat to prevent the leaching of carcinogens into liquids. For instance, the flame retardant antimony trioxide can leach into liquids if PETE is heated. Therefore, it is important to store PETE products in cool environments and avoid reusing them.
While plastic #1 is recyclable, it should be noted that the presence of a recycling symbol does not always indicate recyclability. The recycling symbol, often found on plastic products, provides information about the type of plastic used through a number enclosed within a triangle. This number corresponds to a specific resin identification code, indicating the type of plastic resin used.
Compared to other plastics, plastic #1 is considered relatively safe for use. However, it is recommended to opt for safer alternatives like glass, metal, or bamboo whenever possible, as all plastic products can leach toxic chemicals when heated or damaged.
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It should be stored in a cool environment and should not be reused
Plastic #1, also known as PETE or PET, is one of the most commonly recycled plastics. It is used in water and beverage bottles, food jars and containers, salad dressing and oil bottles, mouthwash bottles, and cleaning product containers.
While #1 plastic is not the most hazardous, it should be stored in a cool environment and should not be reused. This is because it can cause carcinogens, such as the flame retardant antimony trioxide, to leach into your liquids if heated. All plastic products can leach toxic chemicals when heated or damaged, so it is best to opt for materials like metal and glass where possible.
The presence of a resin code on a plastic product does not necessarily mean that it can be recycled. The number inside the triangle, usually found at the bottom, top, or side of the product, indicates what type of plastic the material is made from.
#1 plastic is relatively safe, but it is always important to exercise caution when using any type of plastic, especially around food or drink. Some types of plastic, such as #2, #4, and #5, are generally considered safer options. It is also important to check with your local recycling program, as some plastics may not be accepted for recycling in your area.
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It should be avoided for microwaving, despite microwave-safe labels
Plastic containers with the number 1 are made of polyethylene terephthalate (PETE or PET). They are commonly used for soft drink bottles, cooking oil containers, water bottles, and food jars and containers.
While some sources claim that number 1 plastics are microwave-safe, others advise against it. This is because all plastics are derived from petroleum, and high temperatures will cause chemicals to leach into food. When any plastic begins to pit or show signs of wear, the damage increases, and toxic chemicals can be released.
Clear PET is not recommended for microwave use as it may leach chemicals or melt. However, opaque PET, also known as CPET (Crystalline PET), is engineered for higher heat tolerance, making it suitable for microwave and oven use. This type of plastic is often used in ready-to-cook meal trays that are designed to withstand cooking temperatures.
It is important to differentiate between CPET and APET. APET, or Amorphous PET, is transparent and used for cold food and drinks. It should not be used in the microwave as it may leach chemicals or melt.
When using plastic containers in the microwave, it is always best to check for a microwave-safe label or symbol.
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Frequently asked questions
The number 1 on plastic is a resin identification code that refers to the type of plastic the material is made of. It is called Polyethylene terephthalate, also known as PETE or PET.
Plastic with the number 1 is relatively safe, but it should be stored in a cool environment and not reused. It should also be kept away from heat to prevent the leaching of carcinogens into liquids.
Plastic with the number 1 is commonly used for water and beverage bottles, food jars and containers, salad dressing and oil bottles, clothes fibre, and mouthwash bottles. It is also used for household cleaning product containers.









































