Packets of flour were cleaned with ultraviolet light, contestants spent six weeks away from their families and Prue Leith “bubbled” with her pet dogs. Producers of The Great British Bake Off have explained how they created a safe “biosphere” to ensure that this year’s series — complete with Hollywood handshakes — could go ahead despite the pandemic.

Contestants include a pantomime producer, a Jamaican-born radiographer and an adventurer who found solace in baking after losing his leg in a motorbike accident. They were only able to show off their culinary skills after Channel 4 approved measures to ensure the show abided by social-distancing rules that caused the cancellation of other TV series including Love Island.

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