2013 horse meat scandal around 500–600 burgers containing 100% horse meat would need to be eaten to receive the daily human therapeutic dose. Additional tests at that time indicated than none of the products from Findus contained phenylbutazone. Another report found that between two and five percent of samples tested between 2007 and 2011 had phenylbutazone contamination, and that only 50 samples per year were tested. In 2012, 145 carcasses had been tested, and two out of the nine carcasses found positive for bute that year were not reported to the FSA for seven months. In April 2013, the FSA reported it had not
Criticism of Tesco but Tesco backed down. Tesco has been subject to several claims of apparently out-of-date food being 'back-labelled' to appear still to be within date, poor café hygiene and a staff member contracting legionnaires' disease in the Wrexham store. Tesco denied squeezing its suppliers in December 2013 after retail analyst Cantor Fitzgerald accused Tesco of practices that risked breaching the Groceries Supply Code of Practice and criticized its trading relationships. Similar accusation were also made in April 2005 despite its record £2 billion profit. In May 2004, Tesco announced it was reducing sick pay in an attempt to reduce levels of