Bosses have said the factory is trying to track down any further cases, but one worker is said to be seriously ill and in hospital.
The factory, which produces 500 million Yorkshire puddings a year, is now running at reduced capacity after the company deep cleaned it following the outbreak.
Aunt Bessie’s Yorkshire pudding factory in Hull has been hit by a coronavirus outbreak, and is now working at reduced capacity in a bid to control the outbreak
Tim Fielding, assistant director of public health at Hull City Council, said the risk to the public is perceived to be “very low”.
An Aunt Bessie’s Yorkshire pudding factory has been hit by a coronavirus outbreak, with one worker “seriously ill” in hospital.
A second employee of the Hull factory is said to be recovering at home and both are believed to have had symptoms before being tested.
In a statement, Aunt Bessie’s said: “Currently, our Aunt Bessie’s factory has a small number of coronavirus cases, but PHE has repeatedly complimented us on our social distancing measures and our proactive approach to ensuring that our colleagues are safe and well.
He said Aunt Bessie’s have put in place additional social distancing measures and the plant will operate at a reduce capacity.
“We acted early and decisively in March to implement new procedures and have strict protocols at all of our sites, including our Hull Aunt Bessie’s factory, to reduce the risk of coronavirus spreading amongst our employees.”
“The health and welfare of our employees is our number one priority.
The firm added: “If a factory worker contracts the virus, we would clean the area where the person was working, confirm that social distancing has been applied and apply our own track and trace procedure to identify co-workers who also need to go into isolation.”
Aunt Bessie’s has also confirmed employees who have to isolate due to having coronavirus symptoms will receive full pay.
Hundreds of employees were forced to self-isolate after coronavirus was detected at a Banham Poultry factory in Norfolk.
At the end of last month, a Greggs depot near Leeds was forced to shutdown after around 20 staff members were infected.