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
Tesco biofuels, offering petrol-bioethanol and diesel-biodiesel blends instead of pure petrol and diesel at their petrol stations, and now offering Greenergy 100% biodiesel at many shops in the southeast of the United Kingdom. In 1998, Tesco and Esso (part of Exxonmobil) formed a business alliance that included several petrol filling stations on lease from Esso, with Tesco operating the attached shops under their Express format. In turn, Esso operates the forecourts and sells their fuel via the Tesco shop. As of 2013, there were 200 joint Tesco Express/Esso sites in the UK. In 2018, Tesco launched a separate budget chain, Jack's,