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Watch Food Unwrapped Season 21 Episode 1 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

How the UK food industry is meeting the challenges of climate change, including a look at an innovative plan to reduce supermarkets' reliance on plastic packaging for fruit and vegetables. Kate Quilton investigates why cucumbers come wrapped in so much plastic, Amanda Byram finds out what becomes of pumpkins after Halloween, and Matt Tebbutt reports on a protein made in the UK that provides a more environmentally friendly alternative to both meat and soy.