Criticism of Tesco notice was given to customers and Tesco faced a huge backlash. It then delayed the change to June 2018. In 2013, as part of the 2013 meat adulteration scandal DNA tests revealed that horse meat was present in some meat products sold in Findus and ABP Food Group ready packed meals. On 7 February 2013, it was revealed by the Food Standards Agency that the Findus beef lasagne range in the UK, France and Sweden and the shepherd's pie and moussaka ranges in France contained horse meat without proper declaration or official scrutiny. The contamination may have gone on since
2013 horse meat scandal quantification of the equine DNA in this one burger product gave an estimated amount of 29% equine DNA relative to the beef DNA content of the burger product. This product was manufactured by Silvercrest on behalf of Tesco. At this point, there was no explanation for the finding of 29% equine DNA relative to beef DNA in this single sample. On 14 January 2013 the FSAI informed the Department of Health and the Department of Agriculture, Food and the Marine of the final results. On the same day it also informed the Food Standards Agency in the United Kingdom. The