What is PET
Understanding PET the plastic behind most beverage bottles
The Ubiquitous Plastic
PET (polyethylene terephthalate) is the clear, lightweight plastic used in many beverage bottles you see every day. It was first synthesised in 1941, and a breakthrough in the 1970s made it commercially viable for bottles—shaping modern packaging as we know it.
Key Properties and Benefits
PET is popular for good reason. It is strong, clear, and provides an effective barrier against gases such as oxygen and carbon dioxide, helping to protect freshness and taste.
The Ubiquitous Plastic
Because it is lightweight, PET can also be an efficient packaging choice, often requiring less energy and generating lower carbon emissions across production and transport compared with glass bottles, aluminum cans or cartons.
The Ubiquitous Plastic
PET (polyethylene terephthalate) is the clear, lightweight plastic used in many beverage bottles you see every day. It was first synthesised in 1941, and a breakthrough in the 1970s made it commercially viable for bottles—shaping modern packaging as we know it.
Key Properties and Benefits
PET is popular for good reason. It is strong, clear, and provides an effective barrier against gases such as oxygen and carbon dioxide, helping to protect freshness and taste.
The Ubiquitous Plastic
Because it is lightweight, PET can also be an efficient packaging choice, often requiring less energy and generating lower carbon emissions across production and transport compared with glass bottles, aluminum cans or cartons.
Why recycling PET is more complex that it looks
Identify the Multi-Material Composition
A “PET bottle” is not made from PET alone. The bottle body is usually PET, but the cap and ring and the label are often made from different plastics or materials.
Recognize the Initial Sorting and Separation Requirement
To produce high-quality recycled PET, these parts need to be separated and managed properly during sorting and processing.
Understand the Impact of Design on Sorting
Recyclability also depends on design details that are easy to miss. The shape of the bottle, the size and placement of the label, and the material used for labels and adhesives can all affect how easily a bottle can be sorted and recycled.
Acknowledge Specific Design Obstacles
For example, large or tightly wrapped labels can make it harder for sorting systems to identify the bottle correctly, and certain label materials or glues can contaminate the recycling process.
