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
Tesco Ireland UK, but not doing the same in Ireland. This is putting pressure on prices in Ireland as surplus poultry meat from the UK is being dumped on the market. The Irish Advertising Standards Authority in January 2009 found that Tesco Ireland advertising was misleading. Britain's Advertising Standards Authority said a leaflet produced by Tesco Ireland Ltd, was ‘‘irresponsible’’ and breached clauses in the advertising code on substantiation and weight control in May 2010. Tesco pleaded guilty and was fined, after sending unsolicited marketing emails to a number of customers and for having a problem with the email "opt-out" option. The