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Polymers

Lego ditches plan to use recycled PET

by Alex Scott
September 29, 2023 | A version of this story appeared in Volume 101, Issue 32
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A Lego set showing a scientist at work.
Credit: Lego
Lego is looking for alternative materials for its famous toy bricks.

Lego says that after 2 years of testing, it has dropped any plans to use recycled polyethylene terephthalate (PET) as the main material for its famous Lego toy bricks. The company currently makes its bricks from the fossil fuel–derived polymer acrylonitrile-butadiene-styrene but since 2015 has been seeking a more sustainable material. Recycled PET “wouldn’t have helped us reduce carbon emissions,” the firm says in a press release. The firm has so far tested more than 300 different materials.

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