By Sebastian Murphy-bates For Mailonline
Published: 20:35 BST, 1 September 2019 | Updated: 20:46 BST, 1 September 2019
Supermarket inspectors visited Hula Hoop's factory after a whistleblower branded it a 'disgusting' health hazard and claimed machines were caked in fat and dust.
As well as the popular savoury rings, the KP Snacks base makes Sainsbury's, Aldi's and M&S's own-brand versions.
One source said that the site is 'rarely' cleaned even though it's had £30million of new machinery installed.
The whistleblower told the Daily Star that a tar-like mixture of dust and fat lies on the floors, walls and machines.
Piles of Hula Hoops regularly drop off the conveyor belts and sit on the factory floor for months.
The whistleblower says that sections of floor are covered in black grime and snacks are left on the floor for months after falling from the conveyor belts
Aldi and M&S deployed inspectors to the factory to check the site after the source told the paper that red floors had been turned mainly black.
The worker said: 'It's disgusting for a food