Food Unwrapped

Pearls, Rainbow Ham, Butterflies (14x3)

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Matt Tebbutt visits China to find out how they maximise the chances of finding pearls, and helps to cultivate them from a surprising creature that is definitely not an oyster! Meanwhile, Kate Quilton investigates whether it is safe to eat sliced ham that has developed a weird rainbow pattern, and discovers a bizarre connection between the meat and butterflies.