2013 horse meat scandal only found more than 1% horse DNA in Asda's tins of but it also contained four ppb of phenylbutazone, marking the first time since the start of the scandal that bute had been detected in a meat product in the UK food chain. However, one problem raised was over documentation; all of the UK animals with phenylbutazone contamination tested in early 2013 possessed a "horse passport" that allowed the carcasses to be sold for human consumption. The veterinary residues committee (VRC) reminded the public in July 2012 that it had been "repeatedly expressing concern" about phenylbutazone contamination. and recent discoveries
Criticism of Tesco scandal an employee, asking for her name to be kept confidential, revealed that her bosses told her, on several occasions, not to dispose of smelly raw meat products, instead she was instructed to wash the meat with sodium hypochlorite and sell it later on. Occasionally, the smelly meat product was grilled and sold like that Allegations were made in the national press that Tesco was stifling operation in some regions and using unnecessarily harsh disciplinary procedures on its employees since the Millennium. In Thailand, Tesco has been criticised for aggressively pursuing critics of the company. Writer and former MP Jit