Monica Galetti has said she has no concerns about her reputation as a stern-faced, tough-talking TV judge.

The sous chef at Michel Roux's London restaurant Le Gavroche is back for a fourth time as a judge on MasterChef: The Professionals.

"It's work, and I'm here to do a job. Michel (Roux) has put me here to be as I am in his kitchen, so I'm not going to change that just because there's a camera on me," she said.

"It's the reality of working in a high-end kitchen - the standards are high, you expect the best and when there is a problem, you deal with it."

Monica, who has penned her first book, Monica's Kitchen, added: "I think the criticism is telling them where they've gone wrong and, if anything, I'm disappointed when they don't step up to it because I'm expecting them to do very well. I don't want them to falter."

MasterChef: The Professionals is on Monday to Thursday each week on BBC Two. Monica's Kitchen is published by Quadrille, priced £20. Available now.