- Video report by ITV News Business Editor Joel Hills
Sainsbury's has decided not to take any more deliveries from the factory at the centre of serious concerns over food hygiene and labelling.
The supermarket joins Marks and Spencer, Lidl and Aldi in suspending taking fresh chicken from 2 Sisters plant in West Bromwich featured in an investigation by ITV News and the Guardian, which uncovered a series of potential breaches of food safety rules.
It comes as the chair of the Environment, Food and Rural Affairs Select Committee said he is considering a "short, sharp parliamentary inquiry" into food safety at 2 Sisters, the UK's largest supplier of chickens to supermarkets.
Neil Parish MP said the inquiry would seek to "restore public confidence" and hoped the firm's owner, Ranjit Boparan, could be called to give evidence.
ITV News' undercover reporter got a job at 2 Sisters' "Site D" in the West Midlands, which processes fresh chicken for Tesco, Sainsbury's, Aldi, Lidl and Marks and Spencer.
But he found evidence that suggests some of the chicken produced from this factory may not be as fresh as the use by date suggests.
Our reporter witnessed:
- Workers changing both the date of slaughter and the source codes on crates of chicken crowns in such a way that artificially extended the meat’s shelf-life and rendered it almost untraceable in the event of an outbreak of food poisoning
- On several occasions, workers returning chicken to the production line after it had fallen to the floor. This may have caused it to become contaminated
- Meat of different ages being mixed together and he filmed Tesco's "exclusive" Willow Farms range being topped up with drumsticks that were originally packaged for Lidl
- Video report by ITV News Health And Social Affairs Correspondent Rebecca Barry
Sainsbury's said that while it investigates the allegations they have stopped taking any products from the site.
M&S told ITV News "the standards shown in the footage are unacceptable, we take hygiene and traceability very seriously".
An Aldi spokesperson said: "We have suspended supply from this site while we carry out an urgent investigation into these allegations.
“We expect all suppliers to adhere to the highest possible food hygiene and traceability standards at all times.”
A Lidl spokesperson said: "Lidl UK takes the issue of food safety extremely seriously and we were very disappointed to see the unacceptable standards shown in yesterday's report.
"We immediately launched an investigation with the supplier and can confirm that we will not be sourcing from the site until the investigations have been satisfactorily concluded."
ITV News and the Guardian spoke to more than 20 workers, past and present, who have stated that such practices take place.
Some also claim that the chicken supermarkets reject is often repackaged at the factory and sent out again.
2 Sisters employs people to patrol the production line and enforce food safety rules but the quality assurance workers we spoke to told us that they are intimidated by production managers and fear being sent home if they intervene.
A former employee told us they were treated like "the enemy" by production staff and that they felt their job was "pointless".
- Chef and campaigner Hugh Fearnley-Whittingstall reacts to our investigation
We shared our findings with Professor Chris Elliot, a food scientist at Queen's University Belfast, who led the government's inquiry into food safety following the horsemeat scandal in 2013.
"There are major concerns about food hygiene...I think [your] report absolutely calls out for a full investigation," he told us. "I think the Food Standards Agency will take this very seriously, they will inspect and look at the premises and see if there are grounds to close the facility down."
Professor Elliot has inspected many food businesses in the past four years and insists he's never seen such poor standards. More generally, he believes government spending cuts have damaged the effectiveness of local authority inspections.
"It is my view that the environmental health services in the UK have been cut to the bone and cut to such an extent that things like this are probably happening more frequently than they should," he said.
Dr Richard Hyde, an expert in food law at the University of Nottingham, told us: "If you are placing a use by date that is incorrect, that is a breach of law. If you place food on the market that doesn't have the correct traceability information, that is a criminal offence.
"There are a basket of potential offences here that the regulators need to look at and decide whether further action is required".
2 Sisters Food Group was founded in West Bromwich in 1993 by Ranjit Singh Boparan, who has built the business into one of the UK's largest food producers, employing 23,000 staff.
The 2 Sisters empire is vast but Ranjit Singh Boparan is still known in the West Midlands as "The Chicken King" and the bulk of the group’s sales come from processing poultry.
Boparan and his wife, Baljinder, own the business and The Sunday Times estimates their wealth to be £544 million.
2 Sisters is dependent on the five biggest supermarkets for its income. The group’s accounts note that the loss of any of these “key customers” as a potential risk to the business. The same section notes that “product quality and safety issues are paramount to the groups’ success”.
2 Sisters Food Group told us that it takes these allegations extremely seriously. It said: “Hygiene and food safety will always be the number one priority within the business, and they remain at its very core.
"We also successfully operate in one of the most tightly-controlled and highly regulated food sectors in the world.
"We are subject to multiple and frequent unannounced audits from the FSA, BRC, Red Tractor, independent auditors as well as our customers. By example, our facility in the West Midlands under investigation received nine audits (five unannounced) in the months of July and August alone.
"However, we are never complacent and remain committed to continually improving our processes and procedures. If, on presentation of further evidence, it comes to light any verifiable transgressions have been made at any of our sites, we will leave no stone unturned in investigating and remedying the situation immediately."
Today 2 Sisters later released a further statement.
It said: "We have now had an opportunity to view all the evidence and launch our own internal investigation. This is on-going and we will ensure our inquiries are comprehensive and thorough. We will of course continue to work closely with all stakeholders during this investigative phase."
- The responses from the other supermarkets to our investigation
We took our findings to the other supermarkets supplied by 2 Sisters Food Group. They told us that they take hygiene and traceability very seriously. All said they would be investigating the allegations.
- The response from the Food Standards Agency