Summary

Plastic-lined containers, like coffee cups, are convenient, cheap, and heat- and water-resistant, so they're everywhere. This is appreciated when they keep our beloved early morning pick-me-up from transforming into a wet wad that crumples in our grip and embarrassingly stains our finest trousers. But it's also a problem, because plastic-lined containers are harder to recycle and, as mentioned, they end up everywhere.

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