Great British Bake Off fans have been told to expect a "new tone" and "comic riff" when the hit show is rolled out on Channel 4 later this year.

The series' reported £75m move from the BBC to Channel 4 sees returning judge Paul Hollywood joined by cookery icon Prue Leith, who has taken over from Mary Berry.

With former presenters Mel Giedroyc and Sue Perkins deciding to stay with the BBC, the show also has two new hosts, writer and broadcaster Sandi Toksvig and comedian Noel Fielding. 

Prue Leith, Noel Fielding and Sandi Toksvig have joined the show

"This is Bake Off but with an extraordinary, high calibre of contributors and it's got a slight Channel 4 feel to it," said the broadcaster's Chief Creative Officer, Jay Hunt.

"We've got a new tone to it; it's got a new comic riff to it. I think that feels modern and future facing."

Hunt denied reports that relations between the show's four stars had taken a turn for the worse as the heat rose in the Bake Off tent.

"I was in the tent a few weeks ago for the whole day. I was struck by completely the opposite," she said.

"Chemistry is hard to achieve on television and the thing that I took away from it more than anything else is that there was natural warmth and that they got on really well and their humour worked incredibly effectively together." 

"Their chemistry is fantastic, the calibre of the baking is absolutely jaw-dropping," added Hunt.

A source who has seen the first episode of the new series told the Press Association that there were none of the "soggy bottom" jokes which became (in)famous when Mel Giedroyc and Sue Perkins hosted the show on the BBC.

The way they were - The show's BBC line-up of Paul Hollywood and (L-R) Mary Berry, Sue Perkins and Mel Giedroyc

"With Noel, it's a slightly more surreal take," said the source. "So far, episode one, there's no reference to soggy bottoms but it's got a freshness and it feels modern in terms of their comic take on it... It's got a slightly more surreal twist."

In a clip shown to the media at the publication of Channel 4's annual report, Fielding is seen telling the contestants: "Sadly I have to deliver the bad news... a horrible job."

While Leith and Hollywood deliberate on the baking, Toksvig says: "You could say Noel..."

"I'll go. I'll go now. I'll take a hit for the team. It's been great," replies Fielding, before kissing Toksvig on the cheek.