The victim, a 51-year-old man named locally as Alan, is thought to have got stuck whilst cleaning out the giant oven at the factory on the Whitehouse Industrial Estate in Preston Brook.
The firm said it was ‘shocked and saddened at the tragic loss’ of Mr Catterall.
One factory source said: “People are really shaken up by it because it is so sad.
“It doesn’t bear thinking about what his family are going through.”
It remains unclear how Mr Catterall became trapped in the oven while it was turned on
The Health and Safety Executive (HSE) has launched a full investigation into the matter.